Based on the radar dense data of convectional cloud on June 12,2004 in Yongdeng county,choosing two similar convectional clouds as seeding and non-seeding cloud,the remarkable changes of radar echo parameters of the seeding cloud compared with the non-seeding cloud were discussed in this paper,and the rain enhancement effect was evaluated primarily with ground observational rainfall data.The results show that many aspects of the seeding cloud,such as precipitation,life characteristic and vertical characteri...

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The diorama of natural ground scene is modeled from the DEM data base on fractal theory and facet model.

在對地面場景亚洲精品美女久久久久9999，使用分形插值理論和小面單元模型來對實(shí)測的地面場景DEM數(shù)據(jù)進(jìn)行處理，最后再利用地面散射特性模型結(jié)合地面場景模型和空間關(guān)系模型來計算地面場景的RCS數(shù)據(jù)陣国产精品视频你懂的网址，生成場景回波數(shù)據(jù)99国产精品视频。

The main research work and its results are: 1Empirical results are analysed for the relations of fault displacement and earthquake magnitude, and difference between permanent ground deformation and maxium dynamic relative displacement on the two sides of fault; 2An analytic method is proposed for resopnse of a buried pipeline due to earthquake fault movement; 3A new shell model with an equivalent boundary and relted finite element analysis method are proposed for estimating response of a buried pipeline under large fault movement; 4By the proposed method, damage performance of water supply steel pipelines with large diameter is simulated to the real cases in Kocaeli Earthquake and Ji-Ji Earthquake, and simulating results show the real failure mode of pipes is revealed; 5Effects of overlying soil and soft/hard interlayers are analyzed on ground rupture mode and degree due to earthquake fault, and some earthquake rupture phenomena in soil layers are theoretically described for the first time; 6Pipeline response characters are discussed for the case of considering effects of soil layers on ground rupture mode; 7Research results and proposed method are applied in seismic analysis of pipline acrossing fault in the Gas Tansportation Project from West to East in China.

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The war was a complete subversion of the war in the past to attack ground-based understanding of the concept; the Federal Republic of Yugoslavia in the war, the US-led NATO forces did not put in ground troops, the use of the Federal Republic of Yugoslavia Precision guided weapons of indiscriminate bombing, eventually forcing the Federal Republic of Yugoslavia to yield more ground attack proved that the traditional mode of war will soon be empty by the Navy-led joint operations by replacement of the three services, ground troops in modern warfare status, others Gradually given way to decline in the Air Force and Navy.

這次戰(zhàn)爭徹底顛覆了人們的對以往戰(zhàn)爭的以地面進(jìn)攻為主的認(rèn)識觀念樱花动漫官网下载app下载安装；在對南聯(lián)盟的戰(zhàn)爭中，以美國為首的北約部隊(duì)久热黄色视频，在未投入地面部隊(duì)的情況下国产激情视频一区二区三区，對南聯(lián)盟采用高精度的制導(dǎo)武器狂轟濫炸，最終也迫使南聯(lián)盟屈服国产99机热在线精品，更證明了地面進(jìn)攻的傳統(tǒng)戰(zhàn)爭模式即將被以空海軍為主導(dǎo)的三軍聯(lián)合作戰(zhàn)所替代美国男女操逼，地面部隊(duì)在現(xiàn)代戰(zhàn)爭中的地位，己逐步下降讓位于焊咔逶谙咧形淖帜灰磺空軍秋霞理论久久理论电影。

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自動地面：地面自動平衡-提高搜索起飛地面線圈，按AUTO按鈕地面国产第三页，降低線圈到地面国产丰满成熟女性性高潮视频，并釋放精密自動按鈕平衡。

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Observation of radar and intensive surface wind of 0505 typhoon Haitang is used to analyze the relationship between radar reflectivity and observed precipitation and the relationship between mesoscale surface stream field and heavy rainfall. The analysis shows that when the Doppler radar reflectivity reaches 50 dbz, it has a good correspondence to the heavy one hour precipitation. Besides, heavy precipitation is also related to the mesoscale cyclonical current and confluent currents, it occurs near the mesoscale cyclonical or confluent current appearing at the same time.

利用嚴(yán)重影響浙江東南地區(qū)的2005年05號臺風(fēng)的雷達(dá)和地面加密風(fēng)場資料，分析對比臺風(fēng)中尺度暴雨過程中雷達(dá)回波與實(shí)況降水真人黄色视频免费的、中尺度地面流場與暴雨之間的關(guān)系特黄一级免费视频，結(jié)果得到：多普勒雷達(dá)近地面強(qiáng)回波帶或中心往往達(dá)到50 dbz時，與一小時的強(qiáng)降水區(qū)有很好的對應(yīng)關(guān)系手机在线看永久AV片免费无毒，暴雨中心區(qū)也與地面加密的中尺度流場中出現(xiàn)的中尺度氣旋性環(huán)流和匯合氣流有關(guān)美女黄网站一区二区，強(qiáng)暴雨區(qū)落在同時刻中尺度渦旋或匯合線附近。

Based on the analysis of the factors caused land subsidence, the internal mechanism and development process of land subsidence caused by two mainly factors of dewatering and underground mining have been studyed in this thesis. The random medium model and methods have been established to calculate the land subsidence and deformation caused by dewatering or underground minging and both of them. The prediction problem of land subsidence and deformation caused by single factor and many factors has been solved.

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For each strategy, a corresponding exploitation plan of groundwater was designed. Then each designed exploitation plan (except scheme 3) was put into the model for calculation and simulation. The analysis on the forecasting results every plan indicates that:(1) Shuting down the self-provided wells is the most direct and effective method, playing an important role in the land subsidence prevention.(2) The resumption of compressed soil by groundwater artificial recharge is limited. So the artificial recharge can\'t provide essential effect for the resumption of land subsidence, unless the artificial recharge is much more than the groundwater withdrawal.(3) The method of "adjusting the exploitation stratum of groundwater to the shallow" has an obvious effect on the land subsidence prevention.(4)"Sand wells" can increase the leakage recharge for confined aquifer, and thus can slow and prevent the development of the land subsidence.(5) For the groundwater exploitation in Xi\'an, emergency self-provided wells should be managed according to the well spacing of 1600m, 2000m and 1600m, respectively, in the river terrace area, alluvial-proluvial fan area and loess tableland area to exploit the first confined groundwater. Corresponding individual well yield can be set as 2500m~3/d, 1500 m~3/d and 200 m~3/d. Make emergency self-provided wells pump in the dry year and stop pumping groundwater to restore and conserve underground water sources in average years and wet years. In this way, groundwater withdrawal of 162000m~3/d can be obtained to provide for the supplement of water supply in Xi\'an. As a result, the water supply stress can be released in dry years. The groundwater depression formed in the exploiting year can resume in 3-4 years. At the same time, this exploitation manner will not lead to obvious land subsidence.

本文利用所建的模型預(yù)測了現(xiàn)狀開采條件下未來20年的地下水位和地面沉降的變化国产一区黄视频，在此基礎(chǔ)上，提出了防治西安市地面沉降的五個地下水開采方案日韩成人作爱在线视频观看网站大全，利用所建的地面沉降模型對各個設(shè)計方案其進(jìn)行了模擬和預(yù)報精品久久久久中文字幕，對預(yù)測結(jié)果的分析表明：①封停自備井是防治地面沉降最為直接和最有效的對策，對防治地面沉降起著最為積極的作用欧美一级黄色男女尻屄视频；②采用人工回灌方法使被壓縮的土層得到的恢復(fù)是非常有限的欧美另类自拍，對地面沉降不能起到根治作用，只有回灌量明顯大于開采量時才能有一定的效果无码乱伦国产；③&調(diào)整開采層次男女激情免费网站，在淺層取水&對防治地面沉降的效果十分明顯；④布設(shè)&砂井&可以增加對承壓含水層的越流補(bǔ)給量操屄视，從而可以有效地緩解和控制地面沉降的發(fā)生和發(fā)展国产女同调教精品视频；⑤對西安市的地下水開采，可在河流階地區(qū)欧美老人黄片、沖洪積扇區(qū)和黃土塬區(qū)分別采用1600m无码码一区精品品和亚洲洲、2000m、1600m的井間距布置應(yīng)急自備井久久视频一二区，分別采用2500m~3/d精品久久九九九久久久久国产、1500 m~3/d和200 m~3/d的單井開采量，開采第一承壓水国产欧美精品亚洲AMV，在平水年或者豐水年不開采A级毛片喷潮高清免费观看，涵養(yǎng)地下水源，在枯水年啟動這些應(yīng)急自備井開采人人插人人爽爽人人干射，在輸出分析范圍內(nèi)共可獲得162000 m~3/d(5913萬m~3/a)開采量3Dh色视频在线播放，可以有效地補(bǔ)充西安市的供水水源，緩解供水緊張局面一级精品片，開采年開采導(dǎo)致的下降的水位可在停采3～4年后得到基本恢復(fù)免费国产a国产片高清网站，同時91嫩草国产在线观看免费，這種開采方式不會造成大的地面沉降量香港日本韩国一级二级三级网站。

The system includes a plane-carried communication subsystem, a satellite communication subsystem, and a ground communication subsystem, wherein, the ground communication subsystem includes a first communication terminal, a second communication terminal, and a ground communication network. The ground communication subsystem also includes an incoming transfer subsystem. The first communication terminal's calling to the second communication terminal is transferred to the corresponding fixed satellite communication terminal through the ground communication network, the satellite communication terminal, and plane-carried communication subsystem according to the correspondence of incoming call transfer.

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ground clutter：地面雜波

地面轉(zhuǎn)折點(diǎn) ground break | 地面雜波 ground clutter | 地面控制 ground control

Jointless flooring：無縫地面做法,菱苦土地面

jointless floor 無縫地面 | jointless flooring 無縫地面做法,菱苦土地面 | jointless iron core 無接縫鐵芯

ground level：地面;地面水平;地面層

ground investigation 探土;土地勘測 | ground level 地面;地面水平;地面層 | ground level contour 地面水平等高線

ground level contour：地面水平等高線

ground level 地面;地面水平;地面標(biāo)高 | ground level contour 地面水平等高線 | ground level road 地面道路

ground level contour：地面水平等高線KQy中國學(xué)習(xí)動力網(wǎng)

ground level 地面;地面水平;地面標(biāo)高KQy中國學(xué)習(xí)動力網(wǎng) | ground level contour 地面水平等高線KQy中國學(xué)習(xí)動力網(wǎng) | ground level road 地面道路KQy中國學(xué)習(xí)動力網(wǎng)

land subsidence：地面沉降

引言 地面沉降( land subsidence)是在自然和人為因素作用下,由于地殼表層土體壓縮而導(dǎo)致區(qū)域性地面標(biāo)高降低的一種環(huán)境地質(zhì)現(xiàn)象. 目前世界上已有50多個國家和地區(qū)發(fā)生地面沉降,我國自1921年上海出現(xiàn)地面沉降以來,至今已有96個城市和地區(qū)發(fā)生不同程度的地面沉降,

surface-based subsystem：地面子系統(tǒng); 地面分系統(tǒng)

surface-based observing station 地面觀測站 | surface-based subsystem 地面子系統(tǒng); 地面分系統(tǒng) | surface-induced process 表面誘發(fā)過程

land uplifting：地面隆起,地面上升

land upheaval 地面隆起 | land uplifting 地面隆起,地面上升 | land-based borrow area 陸上采料區(qū)

Jointless flooring：無縫地面做法,菱苦土地面

jointless floor 無縫地面 | jointless flooring 無縫地面做法,菱苦土地面 | jointless iron core 無接縫鐵芯

ground track：地面軌跡,地面航跡

ground survey area 地面實(shí)況工作區(qū) | ground track 地面軌跡,地面航跡 | ground truth 地面實(shí)況