• <tr id="yyy80"></tr>
  • <sup id="yyy80"></sup>
  • <tfoot id="yyy80"><noscript id="yyy80"></noscript></tfoot>
  • 99热精品在线国产_美女午夜性视频免费_国产精品国产高清国产av_av欧美777_自拍偷自拍亚洲精品老妇_亚洲熟女精品中文字幕_www日本黄色视频网_国产精品野战在线观看 ?

    Assessing the Precipitation Enhancement Development Potential in 2013 Using the CWRPEP Method in Liaoning Province

    2015-02-05 03:30:47ShuhuiZHAOYangLIUJianYUANBinFANGXinQINYanzheLI
    Agricultural Science & Technology 2015年6期
    關(guān)鍵詞:水資源量潛力遼寧

    Shuhui ZHAO,Yang LIU,Jian YUAN,Bin FANG,Xin QIN,Yanzhe LI

    Liaoning Provincial Weather Modification Office,Shenyang 110066,China

    Assessing the Precipitation Enhancement Development Potential in 2013 Using the CWRPEP Method in Liaoning Province

    Shuhui ZHAO,Yang LIU,Jian YUAN*,Bin FANG,Xin QIN,Yanzhe LI

    Liaoning Provincial Weather Modification Office,Shenyang 110066,China

    [Objective]The research aimed to assess the development potential of artificial precipitation in Liaoning Province.[Method]The evaluation method of cloud water resource for precipitation enhancement potential was used.[Result]The annual total precipitation enhancement potential by cloud water resource in the air in 2013 was 1.23 billion tons in Liaoning,and cloud water resource for precipitation enhancement was 1.63 billion tons.[Conclusion]The spatial and temporal distribution for development potential of cloud water resource in the air was very uneven in Liaoning Province,and the mainly period was during spring and autumn.It will be received obvious effect in the two seasons.In order to compensate for the restriction of the operational capability lack on cloud water resource development,we need to continue to improve the operation capacity building.

    Cloud water resource;Precipitation enhancement;Potential

    A tmospheric water resources in China are more abundant,and its development and utilization potential is great.According to the statistics,60 billion-280 billion tons of precipitation could be increased in China every year,that is,development potential of atmospheric water resource in China can reach 280 billion tons every year,which is equivalent to 7 times of the Three Gorges Reservoir capacity[1-2].As the introduction of central document No.1 in 2011,the topic about scientifically developing the cloud water resource in the air becomes the focus,which is also a key work of meteorological department.To implement the spirit of central document No.1 and enhance the development and utilization of cloud water resource in the air,Weather Modification Center of China Meteorological Administration issued cloud water resource for precipitation enhancement potential method,which is called as CWRPEP method for short,and required its application in whole country.Assessment on cloud water resource has important role and significance on the implementation of weather modification work and benefit evaluation.In 2005,distribution condition and development potential of cloud water resource in Liaoning Province were analyzed by using conventional sounding,observation data of cloud and precipitation.It was thought that there were more operation opportunities and greater precipitation enhancement potential[4-6].It was conductive to effective implementation of routine business work of precipitation enhancement to use CWR-PEP method to further study temporal-spatial distribution of cloud water resource in Liaoning Province.

    Introduction of CWR-PEP Method and Parameter Setting

    Assessment scheme of cloud water resource for precipitation enhancement potential can be expressed as:

    PEP=Hh×Ew×Pe=∑(Hht×Hhs)× Ew×[Pc×Pn×(1-Pk)×Pa].

    Total precipitationHh

    Hh=∑Hht×Hhs.Here,Hh is total volume(mass)of precipitation in region S at time interval T;Hht is total thickness of precipitation within time interval T observed by each station; Hhs is the area represented by the station;the product of Hht and Hhs is precipitation volume(mass)observed at the station;∑is the sum of precipitation volume(mass)of each station in region S.When the units of Hht and Hhs are respectively mm and km2,the units of PEP and Hh are×103t.According to Administrative division, Liaoning Province administrates 14 prefecture level cities,17 county level cities,19 counties and 8 autonomous counties.Precipitation data at corresponding meteorological observatories of 58 cities and counties were used to calculate,and monthly and annual precipitation(mm)and total precipitation (×103t)in whole province could be obtained.

    Precipitation enhancement efficiencyEw

    A lot of test results showed that the mean of precipitation enhancement efficiency was 10%-15%.During "the 11thFive-year"period,778 paired samples were contrasted and analyzed by using regional contrast test method in"Research on Integrated Key Technology of Practical Catalytic System for Precipitation Enhancement"from Key Project of Liaoning Provincial Department of Science and Technology.Results showed that under guaranteed rate of 80%,precipitation enhancement efficiency was 25.4%when relative to natural rainfall and was 20%when relative to rainfall after artificial influence.Under guarantee rate of 90%,precipitation enhancement efficiency was 17.9% when relative to natural rainfall and was 15%when relative to rainfall after artificial influence.In the assessment scheme,we directly used the research result,and set precipitation enhancement efficiency as 15%.

    Precipitation enhancement probabilityPe

    Precipitation enhancement probability refers to the proportion of region and period for precipitation enhancement,and calculation formula is:Pe= Pc×Pn×(1-Pk)×Pa.Here,Pc is the occurrence probability of suitable condition.According to cloud condition requirement of precipitation enhancement,occurrence probability of cloud condition meeting precipitation enhancement in the assessed region and period is summarized.Pn is demand probability.Under the situation meeting suitable condition,it is the proportion of demand operation which can form significant socio-economic benefit when increasing rainfall in the region at the time.Pk is the probability not suiting for operation.We should avoid local disaster risk brought by operation,such as local flood or mud slide caused by rainstorm and drought-flood rapid conversion.Pa is operation realizing probability.For precipitation cloud region with suitable zone and opportunity,due to the limitation of operation ability,a part of cloud region is operated,and its proportion is Pa.Pe is the intersection of four probabilities, and the calculation of each probability is restricted by the last probability. Based on sufficiently considering calculation efficiency in Liaoning Province,calculation sequence was determined:Pk,Pn,Pc and Pa.

    Probability not suitable for operationPkSeen from actual situation of precipitation enhancement operation in Liaoning Province over the years, the situation not suitable for operation often appears in the period with more precipitation in flood season.To avoid local disaster risk,provincial government requires stopping operation.In addition,winter snowfall induces general concern of the community.On the one hand,snowfall will bring various negative influences to urban traffic.On the other hand,moisture adding effect of winter precipitation on spring soil is not great in Liaoning Province.Under general situation,snow enhancement operation is not carried out.So,it is thought that the above two kinds of situations are both not suitable for operation.During assessment period (November of 2012 to October of 2013),snowfall period was from November 3,2012 to April 17,2013, and flood season was from July 1, 2013 to September 7.The above two periods were not suitable for precipitation(snow)enhancement operation.

    Operation demand probabilityPn

    Major demands of Liaoning Province implementing precipitation enhancement operation include agricultural drought resistance,reservoir water storage and declining forest fire disaster grade.So,operation demand probability mainly considers soil water demand,reservoir water demand and forest fire disaster.Soil water demand situation uses hourly automatic soil moisture observation data at 53 stations of Liaoning Province.Because that major crop in Liaoning Province is corn,and relative humidity of soil from surface to 30 cm deep has great impact on corn,the mean for relative humidity of soil at 0-10,10-20 and 20-30 cm in 24 h is counted as relative humidity of soil at the station on the day.When relative humidity of soil is less than 80%,it is thought that soil needs water,and there is precipitation enhancement demand,or else,it is unwanted.Reservoir water storage is originally listed one of the factors taken into account for operation demand probability,but due to not obtaining corresponding data,the factor is not used in the assessment.The demand for declining forest fire disaster grade mainly refers to issue information of forest fire disaster grade.When forest fire disaster grade is more than Grade 3,it is easy to burn.Then it has the demand for declining forest fire disaster grade,or else,it is unwanted.When a factor shows that there is precipitation enhancement demand in the region,it is thought that there is operation demand on the day,or else,there is not operation demand.

    Probability occurring under suitable conditionPcCurrent precipitation enhancement operation ability in Liaoning Province only limits in catalyzing cold cloud and mixed cloud,and catalytic operation of warm cloud is still at test stage.So,suitable condition of operation considers cold cloud or mixed cloud.In addition,to make precipitation enhancement operation generate proper social benefit,we also should consider its input/output ratio.If precipitation does not reach certain magnitude,we do not consider implementing operation generally.So,judging indexes of suitable condition are set:e-Ei>0 and daily rainfall>3 mm. Except daily rainfall data,e-Ei indexes at 500,700 and 850 hPa are judged by numerical forecast product of WRF mode.When there is a layer meeting judging condition and continuously occurring for more than 2 h,it is thought that it is suitable for operation on the day.

    Operation realizing probabilityPa

    Liaoning Province rents 3 airplanes and 218 mobile rocket launching system every year,and implements cross regional joint operation in whole province.So,under the situation that all airplanes and rockets carry out operation,it is thought that it could meet basic requirement of operation in whole province.In addition,due to strong airspace safeguard,the situation can not work limited by airspace is seldom.It is thought that operation realizing probability under normal situation is 100%.According to rent period of airplane and work period of rocket, corresponding operation realizing probability is calculated.

    Assessment Results

    Rainfall

    Total annual rainfall in Liaoning Province in 2013 was 115.4 billion tons,and annual average rainfall was 782 mm.In 58 cities and counties of whole province,total rainfall was from 0.1 billion to 8.2 billion tons,and average rainfall was during 300-1 500 mm. Seen from Fig.1,total rainfall obviously presented decreasing tendency from southeast to northwest.Total rainfall in southeast Liaoning was greatly more than other regions,and total rainfall in Chaoyang,Huludao,Jinzhou,Yingkou and Panjin was less.Total annual rainfall in more than 30 cities and counties concentrated from 1 billion to 3 billion tons.Seen from annual average rainfall,the maximum was 1 457.9 mm in Dandong City,while the minimum was only 324.1 mm in Beipiao City of Chaoyang.The city with annual average rainfall less than 900 mm accounted for 74.14%.

    Via statistical analysis,it is thought that precipitation is the determinant factor affecting water resource condition[4].Liaoning is in north temperate continental monsoon climate region.The special geographical position and climate condition decide that Liaoning Province naturally lacks water resource.Besides uneven spatial distribution of precipitation,temporal distribution also has great difference. Precipitation mainly occurs in summer, and general rule is abundant water in flood season and lower water in other periods.The situation in 2013 was also the same(Fig.2).During assessment period,rainfall in July was 252 mm and was the maximum,which accounted for 33.29%of total annual rainfall. Rainfall during major flood season was 403 mm,which accounted for 53.29% of annual rainfall.

    PEP

    PEP of cloud water resource in the air over Liaoning Province was 1.23 billion tons in 2013,and spatial distribution of PEP in whole province was shown as Fig.3.Potential value in east Liaoning was bigger,and PEP in Xinbing County of Fushun City reached 0.093 billion tons.Major reason for lower PEP in west Liaoning was less total rainfall,and lower PEP in south Liaoning was because of small demand probability.PEP area mean in whole province was about 8 mm,in which the value in Fushun, Shenyang,Benxi and Tieling could reach over 15 mm.In whole westLiaoning region except some areas of Fuxin,PEP area mean was all less than 5 mm.On the one hand,rainfall was less.On the other hand,because that occurrence probability of suitable operation condition was small,PEP area mean in the zone was lower. Rainfall in Dandong and Dalian was abundant,and small demand probability was direct reason for small PEP.

    CREP

    CREP is the calculated value in CWR-PEP under the situation not considering operation realizing probability.CREP distribution of precipitation enhancement at 58 cities and counties in whole year was shown as Fig.4. CREP sum of whole province was 1.63 billion tons,in which CREP in Fushun,north Tieling and south Shenyang could reach 0.06 billion tons,which was abundant,and CREP in other most areas was less than 0.04 billion tons.

    Because that the difference between PEP and CREP mainly embodied in operation ability,seen from Fig. 5,rent time of airplane had great impact on PEP from May to September when cloud water resource was abundant,and 0.389 billion tons of cloud water resource for precipitation enhancement was not developed and used well.In October,cloud water resource for precipitation enhancement was 0.624 billion tons,which was still abundant.But due to rent time expiring of airplane,half of cloud water resource for precipitation enhancement wasted.

    Conclusions and Discussion

    Total precipitation enhancement potential by cloud water resource in the air over Liaoning Province was 1.23 billion tons in 2013,and cloud water resource for precipitation enhancement was 1.63 billion tons. Temporal-spatial distribution for development potential of cloud water resource in the air was very uneven in whole province,and the mainly period was during spring and autumn.It will be received obvious effect in the two seasons.In addition,we need to continue to improve the operation capacity building to compensate for the restriction of the operational capability lack on cloud water resource development.

    [1]CAI M(蔡淼).Assessment on cloud water resource in the air and precipitation efficiency in China(中國空中云水資源和降水效率的評(píng)估研究)[D].Beijing:Chinese Academy of Meteorological Sciences,中國氣象科學(xué)研究院2013.

    [2]LI XY(李興宇),GUO XL(郭學(xué)良),ZHU J (朱江).Climatic distribution features and trends of cloud water resources over China(中國地區(qū)空中云水資源氣候分布特征及變化趨勢(shì))[J].Chinese Journal of Atmospheric Sciences(大氣科學(xué)), 2008,32(5):1094-1106.

    [3]ZHOU DP(周德平),GONG FJ(宮福久), ZHANG SJ(張淑杰),et al.Analysis on distribution features and development potential of cloud water resources in Liaoning(遼寧云水資源分布特征及開發(fā)潛力分析)[J].Journal of Natural Resources(自然資源學(xué)報(bào)),2005,20(5): 644-650.

    [4]BAN XX(班顯秀),WANG JH(王吉宏), HU W(胡偉),et al.Analysis on the contribution of artificial precipitation enhancement amount to annual water resources in Liaoning(遼寧人工增雨量對(duì)年水資源量貢獻(xiàn)的分析)[J].Journal of Anhui Agricultural Sciences(安徽農(nóng)業(yè)科學(xué)),2010,38(34):19582,19851.

    [5]WANG H(王華),BAN XX(班顯秀), ZHANG YS(張玉書),et al.Ecological significance for developing cloud water resource in the air in Liaoning(開發(fā)遼寧空中云水資源的生態(tài)學(xué)意義)[J].Journa

    l of Anhui Agricultural Sciences(安徽農(nóng)業(yè)科學(xué)),2010,38(27):15175-15177.

    [6]YUAN J(袁健),ZHAO SH(趙姝慧), ZHANG WQ(張維全),et al.The application of liquid water content in cloud on weather modification(云中液態(tài)水含量在人工影響天氣中的應(yīng)用)[J].Journal of Anhui Agricultural Sciences(安徽農(nóng)業(yè)科學(xué)),2011,39(1):508,602.

    Responsible editor:Ping SONG

    Responsible proofreader:Xiaoyan WU

    CWR-PEP方法評(píng)估2013年遼寧省人工增雨開發(fā)潛力

    趙姝慧,劉旸,袁健*,房彬,秦鑫,李炎喆
    (遼寧省人工影響天氣辦公室,遼寧沈陽110066)

    [目的]評(píng)估2013年遼寧省人工增雨開發(fā)潛力。[方法]采用云水資源人工增雨開發(fā)潛力評(píng)估方法。[結(jié)果]2013年度遼寧省空中云水資源人工增雨潛力總量為12.3億t,人工增雨云水資源量為16.3億t。[結(jié)論]遼寧省空中云水資源可開發(fā)潛力時(shí)空分布非常不均,可開發(fā)潛力較大的時(shí)段主要是春季和秋季,加大這兩個(gè)季節(jié)的空中云水資源開發(fā)力度可以收到明顯成效。加大遼寧省作業(yè)能力建設(shè)可以彌補(bǔ)作業(yè)能力的不足對(duì)云水資源開發(fā)的限制。

    云水資源;人工增雨;潛力Precipitation enhancement potential= Total precipitation×Precipitation enhancement efficiency×Precipitation enhancement probability.If using PEP to represent precipitation enhancement potential,Hh to represent total precipitation,Ew to represent precipitation enhancement efficiency and Pe to represent precipitation enhancement probability,assessment formula can be written as:

    遼寧省氣象局科研課題“完善云水資源人工增雨開發(fā)潛力評(píng)估方法(CWRPEP)”。

    趙姝慧(1982-),女,遼寧鞍山人,工程師,碩士,從事人工影響天氣方面研究,E-mail:zhaoshuhui512@163.com。*通訊作者,高級(jí)工程師,從事人工增雨業(yè)務(wù)工作,E-mail:yj1962@126.com。

    2015-03-20

    修回日期 2015-05-20

    Supported by"Perfecting CWR-PEP Method"from Science Research Project of Liaoning Provincial Meteorological Bureau.

    *Corresponding author.E-mail:yj1962@126.com

    Received:March 20,2015 Accepted:May 25,2015

    猜你喜歡
    水資源量潛力遼寧
    基于SWAT模型分析嘉陵江流域藍(lán)、綠水資源量的時(shí)空變化特征
    遼寧之光
    新少年(2022年3期)2022-03-17 07:06:38
    讀遼寧 愛遼寧
    遼寧艦
    學(xué)與玩(2018年5期)2019-01-21 02:13:08
    浙江省近期各分區(qū)水資源演變情勢(shì)分析
    潛力榜
    PPP模式怎樣發(fā)揮最大潛力?
    學(xué)習(xí)潛力揭秘
    12星座
    區(qū)域地下水資源量計(jì)算與分析
    两个人视频免费观看高清| 国产一区二区亚洲精品在线观看| 精品久久久久久久久久久久久| 偷拍熟女少妇极品色| 久久久成人免费电影| 男人的好看免费观看在线视频| 亚洲欧美清纯卡通| 婷婷精品国产亚洲av在线| 51午夜福利影视在线观看| 日韩欧美国产一区二区入口| 网址你懂的国产日韩在线| 波多野结衣巨乳人妻| 国内精品久久久久久久电影| 欧美成人一区二区免费高清观看| 精品久久国产蜜桃| 午夜福利在线在线| 全区人妻精品视频| 国产av麻豆久久久久久久| 热99re8久久精品国产| 18禁在线播放成人免费| 久久精品久久久久久噜噜老黄 | a级毛片免费高清观看在线播放| 动漫黄色视频在线观看| 日韩欧美在线乱码| 亚洲第一欧美日韩一区二区三区| 午夜亚洲福利在线播放| 国产私拍福利视频在线观看| 国产精品综合久久久久久久免费| 免费看光身美女| 波多野结衣巨乳人妻| 亚洲不卡免费看| 首页视频小说图片口味搜索| 十八禁人妻一区二区| 俄罗斯特黄特色一大片| 88av欧美| 五月伊人婷婷丁香| 精品人妻偷拍中文字幕| 国产视频一区二区在线看| 亚洲成av人片在线播放无| 国产又黄又爽又无遮挡在线| 欧美zozozo另类| 琪琪午夜伦伦电影理论片6080| 国产主播在线观看一区二区| 国产精品一区二区性色av| 国内精品一区二区在线观看| 天堂网av新在线| 中出人妻视频一区二区| 精品熟女少妇八av免费久了| 欧美性猛交╳xxx乱大交人| 久久精品国产亚洲av香蕉五月| 此物有八面人人有两片| 亚洲精品一卡2卡三卡4卡5卡| 人妻久久中文字幕网| 嫁个100分男人电影在线观看| 十八禁网站免费在线| 黄色一级大片看看| 成人鲁丝片一二三区免费| 黄色视频,在线免费观看| 久久中文看片网| 国产真实伦视频高清在线观看 | 免费av观看视频| 国产在视频线在精品| 99在线视频只有这里精品首页| 女人十人毛片免费观看3o分钟| 国产精品日韩av在线免费观看| av天堂在线播放| 网址你懂的国产日韩在线| 午夜日韩欧美国产| av在线老鸭窝| 校园春色视频在线观看| 国产成人aa在线观看| 亚洲av电影在线进入| 国产欧美日韩一区二区三| 嫩草影视91久久| 国产一级毛片七仙女欲春2| 成年版毛片免费区| 特级一级黄色大片| 免费人成在线观看视频色| 人妻久久中文字幕网| 欧美色欧美亚洲另类二区| 91在线精品国自产拍蜜月| 精品久久国产蜜桃| 精品一区二区免费观看| 2021天堂中文幕一二区在线观| 国产精品98久久久久久宅男小说| 中文资源天堂在线| 高潮久久久久久久久久久不卡| 男女那种视频在线观看| 特大巨黑吊av在线直播| 一本久久中文字幕| 一个人免费在线观看电影| 国产一区二区激情短视频| 在线免费观看的www视频| 97人妻精品一区二区三区麻豆| 此物有八面人人有两片| 午夜福利高清视频| 久久精品人妻少妇| 中文字幕av成人在线电影| 成年女人看的毛片在线观看| 亚洲av二区三区四区| 亚洲色图av天堂| 成人永久免费在线观看视频| 国产精品永久免费网站| 欧美成人免费av一区二区三区| 夜夜夜夜夜久久久久| 桃色一区二区三区在线观看| 不卡一级毛片| 国产亚洲精品av在线| 色5月婷婷丁香| 波多野结衣巨乳人妻| 少妇的逼水好多| 亚洲国产日韩欧美精品在线观看| 欧美日韩国产亚洲二区| 人妻丰满熟妇av一区二区三区| 日日摸夜夜添夜夜添小说| 色综合婷婷激情| 国产亚洲精品综合一区在线观看| 波多野结衣巨乳人妻| 18+在线观看网站| netflix在线观看网站| 亚洲成av人片在线播放无| 91狼人影院| 韩国av一区二区三区四区| 搞女人的毛片| 成人高潮视频无遮挡免费网站| 伦理电影大哥的女人| 国产精品98久久久久久宅男小说| 亚洲国产高清在线一区二区三| 国产精品久久久久久久电影| 亚洲电影在线观看av| 熟女电影av网| 变态另类成人亚洲欧美熟女| 在线a可以看的网站| 在线天堂最新版资源| 国产爱豆传媒在线观看| 亚洲真实伦在线观看| 国产真实伦视频高清在线观看 | 黄色日韩在线| 在线a可以看的网站| 免费av不卡在线播放| 伦理电影大哥的女人| 成人国产综合亚洲| 国产视频一区二区在线看| 亚洲人成网站在线播放欧美日韩| 夜夜看夜夜爽夜夜摸| 999久久久精品免费观看国产| 老熟妇仑乱视频hdxx| 日本免费一区二区三区高清不卡| 亚洲成人久久性| 欧美又色又爽又黄视频| 午夜福利在线在线| 国产三级在线视频| 97人妻精品一区二区三区麻豆| 色噜噜av男人的天堂激情| 欧美午夜高清在线| 亚州av有码| 亚洲av.av天堂| 亚洲18禁久久av| 免费高清视频大片| 久久精品综合一区二区三区| 国产一区二区在线av高清观看| 国产精品自产拍在线观看55亚洲| 我要搜黄色片| 午夜亚洲福利在线播放| 99国产精品一区二区蜜桃av| 毛片一级片免费看久久久久 | 91字幕亚洲| 男人舔奶头视频| 大型黄色视频在线免费观看| 午夜福利18| 国产高清激情床上av| 国产不卡一卡二| 久久精品人妻少妇| 亚洲精品日韩av片在线观看| 国产精品,欧美在线| 久久久精品欧美日韩精品| 少妇的逼好多水| 88av欧美| 在线观看一区二区三区| 亚洲美女视频黄频| 国产高潮美女av| 1000部很黄的大片| 日韩欧美国产一区二区入口| 日韩欧美 国产精品| 丁香欧美五月| 亚州av有码| 日日干狠狠操夜夜爽| 国产一区二区三区在线臀色熟女| 女生性感内裤真人,穿戴方法视频| 九色成人免费人妻av| 国产精品,欧美在线| 精品乱码久久久久久99久播| 久久人人精品亚洲av| 国产真实伦视频高清在线观看 | 老司机深夜福利视频在线观看| 99国产精品一区二区三区| 日韩国内少妇激情av| 老熟妇乱子伦视频在线观看| 成人特级黄色片久久久久久久| 欧美不卡视频在线免费观看| 757午夜福利合集在线观看| 亚洲精品一卡2卡三卡4卡5卡| 欧美日韩黄片免| 亚洲 欧美 日韩 在线 免费| or卡值多少钱| 久久欧美精品欧美久久欧美| 国产精品不卡视频一区二区 | 一进一出好大好爽视频| 男女下面进入的视频免费午夜| 男女做爰动态图高潮gif福利片| 国产伦精品一区二区三区视频9| 亚洲av成人不卡在线观看播放网| 国产视频一区二区在线看| 午夜福利高清视频| 亚洲第一区二区三区不卡| 午夜福利高清视频| 国产三级在线视频| 他把我摸到了高潮在线观看| 他把我摸到了高潮在线观看| 一二三四社区在线视频社区8| 精品午夜福利在线看| 国产精品爽爽va在线观看网站| 丝袜美腿在线中文| 一个人观看的视频www高清免费观看| 午夜免费激情av| 国产亚洲av嫩草精品影院| 欧美激情在线99| 性插视频无遮挡在线免费观看| 久久久色成人| 亚洲国产色片| 熟女人妻精品中文字幕| 欧美xxxx性猛交bbbb| 99久久精品国产亚洲精品| 日本撒尿小便嘘嘘汇集6| 老司机福利观看| 欧美成人免费av一区二区三区| 校园春色视频在线观看| 日本一本二区三区精品| 韩国av一区二区三区四区| 国产欧美日韩精品一区二区| 韩国av一区二区三区四区| 精品福利观看| 日本黄大片高清| 亚洲乱码一区二区免费版| 午夜a级毛片| 深夜精品福利| 亚洲av日韩精品久久久久久密| 一区二区三区四区激情视频 | 丰满乱子伦码专区| av在线天堂中文字幕| 欧美性感艳星| 69av精品久久久久久| 极品教师在线免费播放| 丰满乱子伦码专区| 亚洲精品成人久久久久久| 日韩中字成人| 一a级毛片在线观看| 在线观看av片永久免费下载| 日韩人妻高清精品专区| 国产免费一级a男人的天堂| 久久精品人妻少妇| av在线观看视频网站免费| 亚洲美女黄片视频| 日韩免费av在线播放| 日本与韩国留学比较| 最好的美女福利视频网| 午夜影院日韩av| 3wmmmm亚洲av在线观看| 男女床上黄色一级片免费看| 国产一区二区激情短视频| 日韩av在线大香蕉| 色视频www国产| 国产精品野战在线观看| 久久久久免费精品人妻一区二区| 麻豆成人av在线观看| 波多野结衣高清无吗| 亚洲 国产 在线| 一级a爱片免费观看的视频| www.色视频.com| 亚洲av.av天堂| 亚洲aⅴ乱码一区二区在线播放| 亚洲人成电影免费在线| 男女那种视频在线观看| 国产探花在线观看一区二区| 欧美区成人在线视频| 亚洲欧美日韩无卡精品| 天堂动漫精品| 亚洲黑人精品在线| 国产中年淑女户外野战色| 精品人妻一区二区三区麻豆 | 99久久九九国产精品国产免费| 欧美一区二区精品小视频在线| 少妇被粗大猛烈的视频| 最近视频中文字幕2019在线8| 能在线免费观看的黄片| 国产大屁股一区二区在线视频| 亚洲午夜理论影院| 午夜两性在线视频| 亚洲精品日韩av片在线观看| 亚洲18禁久久av| 国产精品女同一区二区软件 | a在线观看视频网站| 首页视频小说图片口味搜索| 久久久久久大精品| 国产亚洲av嫩草精品影院| 丁香六月欧美| 亚洲自拍偷在线| 国产精品久久久久久久久免 | 国产免费av片在线观看野外av| 在线免费观看的www视频| 国产一区二区亚洲精品在线观看| 乱人视频在线观看| 男女之事视频高清在线观看| 亚洲国产色片| 九色国产91popny在线| av福利片在线观看| 丁香欧美五月| 欧美日韩中文字幕国产精品一区二区三区| 亚洲欧美清纯卡通| 国产单亲对白刺激| 亚洲av中文字字幕乱码综合| 在线观看免费视频日本深夜| 最好的美女福利视频网| 国产精品,欧美在线| 51午夜福利影视在线观看| 很黄的视频免费| 色5月婷婷丁香| 日韩精品青青久久久久久| 国产高清视频在线观看网站| 日本免费a在线| xxxwww97欧美| 成人欧美大片| 在线a可以看的网站| 国内揄拍国产精品人妻在线| 午夜亚洲福利在线播放| 亚洲欧美精品综合久久99| netflix在线观看网站| 欧美乱色亚洲激情| 国产精品久久久久久亚洲av鲁大| 久久精品久久久久久噜噜老黄 | 日韩欧美免费精品| 久久久成人免费电影| 亚洲一区二区三区不卡视频| 最后的刺客免费高清国语| 成人国产综合亚洲| 悠悠久久av| 国产精品一及| 97热精品久久久久久| 蜜桃久久精品国产亚洲av| 小说图片视频综合网站| 长腿黑丝高跟| 亚洲精品久久国产高清桃花| x7x7x7水蜜桃| 真人做人爱边吃奶动态| 永久网站在线| 天堂√8在线中文| 免费观看的影片在线观看| 亚洲在线观看片| 成人国产综合亚洲| 91av网一区二区| 色哟哟·www| 亚洲欧美日韩高清专用| av在线老鸭窝| 欧美日韩黄片免| 88av欧美| 一本久久中文字幕| 老女人水多毛片| 亚洲成人免费电影在线观看| 日韩欧美三级三区| 精品欧美国产一区二区三| 十八禁国产超污无遮挡网站| 动漫黄色视频在线观看| 国产精品久久久久久精品电影| 国产精品久久视频播放| 久久伊人香网站| 九九在线视频观看精品| 香蕉av资源在线| 中文字幕熟女人妻在线| 久久天躁狠狠躁夜夜2o2o| 国产成人啪精品午夜网站| 变态另类成人亚洲欧美熟女| 久久中文看片网| 成年人黄色毛片网站| 日本一本二区三区精品| 每晚都被弄得嗷嗷叫到高潮| 久久久久久大精品| 免费在线观看亚洲国产| 中文资源天堂在线| 色噜噜av男人的天堂激情| 最近最新免费中文字幕在线| 欧美另类亚洲清纯唯美| 在线观看66精品国产| 精品乱码久久久久久99久播| 日韩亚洲欧美综合| 亚洲美女搞黄在线观看 | а√天堂www在线а√下载| 欧美中文日本在线观看视频| 国产精品99久久久久久久久| av天堂在线播放| 亚洲性夜色夜夜综合| 中出人妻视频一区二区| 国产乱人伦免费视频| 久久精品国产清高在天天线| 毛片女人毛片| 少妇的逼水好多| 午夜影院日韩av| 亚洲精品影视一区二区三区av| 久久久久精品国产欧美久久久| 亚洲国产高清在线一区二区三| 亚洲精品粉嫩美女一区| 国产成人av教育| 亚洲中文日韩欧美视频| 亚洲美女黄片视频| 日本免费a在线| 欧美极品一区二区三区四区| 老熟妇乱子伦视频在线观看| 香蕉av资源在线| 亚洲欧美日韩高清专用| 9191精品国产免费久久| 国产午夜精品久久久久久一区二区三区 | 一区二区三区高清视频在线| 床上黄色一级片| 51国产日韩欧美| 9191精品国产免费久久| 亚洲国产精品999在线| 床上黄色一级片| 男人的好看免费观看在线视频| 亚洲av成人精品一区久久| 精品一区二区三区视频在线观看免费| 久久精品夜夜夜夜夜久久蜜豆| 国产国拍精品亚洲av在线观看| 中亚洲国语对白在线视频| 熟女人妻精品中文字幕| 看片在线看免费视频| 欧美日本亚洲视频在线播放| 欧美激情在线99| 亚洲国产精品久久男人天堂| 99久久九九国产精品国产免费| 精品国产三级普通话版| 俺也久久电影网| 啦啦啦韩国在线观看视频| 1000部很黄的大片| 嫩草影院精品99| 欧美3d第一页| 黄色一级大片看看| 美女黄网站色视频| 成人性生交大片免费视频hd| 9191精品国产免费久久| 美女免费视频网站| 日本五十路高清| 亚洲七黄色美女视频| 老女人水多毛片| ponron亚洲| 日韩欧美免费精品| 亚洲久久久久久中文字幕| 久久精品91蜜桃| 18禁在线播放成人免费| 国产精品永久免费网站| 亚洲成人久久性| 天美传媒精品一区二区| 夜夜躁狠狠躁天天躁| 男人舔奶头视频| 日本免费a在线| 久久国产精品人妻蜜桃| 国产三级中文精品| 久久亚洲真实| 免费一级毛片在线播放高清视频| 日韩欧美精品v在线| 国产亚洲精品久久久com| 中文字幕久久专区| 日韩精品青青久久久久久| 欧美成人a在线观看| 国产成人a区在线观看| 国产精品影院久久| 久久天躁狠狠躁夜夜2o2o| 窝窝影院91人妻| 美女大奶头视频| 俺也久久电影网| 国产午夜精品论理片| 亚洲激情在线av| 久久久久性生活片| 99视频精品全部免费 在线| 偷拍熟女少妇极品色| www.熟女人妻精品国产| 好男人电影高清在线观看| 亚洲aⅴ乱码一区二区在线播放| 啦啦啦观看免费观看视频高清| 亚洲精品成人久久久久久| 久9热在线精品视频| 白带黄色成豆腐渣| 亚洲精品粉嫩美女一区| 欧美日韩亚洲国产一区二区在线观看| 精品一区二区三区视频在线观看免费| 最近视频中文字幕2019在线8| 成年免费大片在线观看| 又紧又爽又黄一区二区| 97超视频在线观看视频| 少妇人妻精品综合一区二区 | 亚洲av电影在线进入| 亚洲av不卡在线观看| 精品不卡国产一区二区三区| 国产精品一及| 国产成人av教育| h日本视频在线播放| 十八禁网站免费在线| 成人鲁丝片一二三区免费| 变态另类成人亚洲欧美熟女| 美女高潮喷水抽搐中文字幕| bbb黄色大片| h日本视频在线播放| 久久人人爽人人爽人人片va | 最近最新中文字幕大全电影3| 午夜福利高清视频| 免费搜索国产男女视频| 国产在视频线在精品| 好男人电影高清在线观看| 欧美成人性av电影在线观看| 久久人妻av系列| 人人妻人人澡欧美一区二区| 欧美成人性av电影在线观看| 最近最新中文字幕大全电影3| 国产精品久久久久久亚洲av鲁大| 一边摸一边抽搐一进一小说| 熟妇人妻久久中文字幕3abv| 亚洲国产欧洲综合997久久,| 精品日产1卡2卡| 欧美一区二区精品小视频在线| 俺也久久电影网| 黄色配什么色好看| 欧美一区二区国产精品久久精品| 色尼玛亚洲综合影院| 自拍偷自拍亚洲精品老妇| 男人和女人高潮做爰伦理| 亚洲欧美日韩东京热| 国产精品日韩av在线免费观看| 99久久成人亚洲精品观看| 最好的美女福利视频网| 成年人黄色毛片网站| 欧美日韩瑟瑟在线播放| 久久久久久国产a免费观看| 中文在线观看免费www的网站| 国产三级在线视频| 毛片女人毛片| 激情在线观看视频在线高清| 日韩欧美免费精品| 日日摸夜夜添夜夜添小说| 免费av毛片视频| 精品午夜福利视频在线观看一区| 午夜福利在线在线| 一本一本综合久久| 国产精品一区二区三区四区免费观看 | 狂野欧美白嫩少妇大欣赏| 免费av不卡在线播放| 搡老妇女老女人老熟妇| 乱码一卡2卡4卡精品| 中文字幕av成人在线电影| 成年人黄色毛片网站| 女同久久另类99精品国产91| 91久久精品国产一区二区成人| 亚洲无线观看免费| 久久久精品欧美日韩精品| 亚洲av中文字字幕乱码综合| 国产精品免费一区二区三区在线| 校园春色视频在线观看| 亚洲欧美日韩无卡精品| aaaaa片日本免费| 国产乱人视频| 午夜福利视频1000在线观看| 国产白丝娇喘喷水9色精品| 美女xxoo啪啪120秒动态图 | 国产精品一区二区三区四区久久| 欧美高清性xxxxhd video| 美女大奶头视频| 桃色一区二区三区在线观看| 又粗又爽又猛毛片免费看| 国产精品嫩草影院av在线观看 | 国产高清三级在线| 宅男免费午夜| 欧美国产日韩亚洲一区| 日韩中字成人| 99久国产av精品| 成人三级黄色视频| 亚洲一区高清亚洲精品| 国产精品影院久久| 国产麻豆成人av免费视频| 两个人的视频大全免费| 成年人黄色毛片网站| 成年女人看的毛片在线观看| 97热精品久久久久久| av福利片在线观看| 亚洲五月天丁香| 亚洲av五月六月丁香网| 亚洲aⅴ乱码一区二区在线播放| 免费看光身美女| 欧美日韩乱码在线| 91狼人影院| 亚洲性夜色夜夜综合| 91狼人影院| 深爱激情五月婷婷| 国产精品不卡视频一区二区 | 中文字幕久久专区| 亚洲av成人av| 亚洲三级黄色毛片| 波多野结衣高清作品| 久久久久久久亚洲中文字幕 | 日本三级黄在线观看| 久久精品夜夜夜夜夜久久蜜豆| 色av中文字幕| 少妇丰满av| 中文字幕免费在线视频6| 精品久久久久久久久亚洲 | 内地一区二区视频在线| 男女下面进入的视频免费午夜| 亚洲男人的天堂狠狠| 久久精品夜夜夜夜夜久久蜜豆|