Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 2. Department of Hydraulic Engineering, Tsinghua University, Beifing 100084）The existing problems in the design of reservoir flood operations is analyzed, then aiming at the insufficience of the typical flood, the method for reservoir flood operation with classified forecast is presented in this paper.

將水庫防洪調(diào)度方法劃分為兩大類：一類不考慮預(yù)報欧美日韩草草影院在线观看，通常是選擇"壩前庫水位或?qū)嶋H入庫流量"作為遭遇洪水量級及改變泄量的判斷指標(biāo)花季传媒视频免费观看ios，稱為常規(guī)防洪調(diào)度方法日韩区小视频.免费；另一類考慮預(yù)報超碰人人国产精品，選擇的判斷指標(biāo)多是產(chǎn)流預(yù)報的"累積凈雨量"或匯流預(yù)報的"洪峰流量"或短時"晴雨"預(yù)報等信息，簡稱防洪預(yù)報調(diào)度方法国产视频自拍视频。

With the big project such as national transmission of naturalgas from the west to the east started and urban gas pipeline installed, the technique of tapping and plugging without interruption of service is extensively applied in transporting oil and gas, chemical engineering, water supply and water draining and other areas.

隨著國家"西氣東輸"等重大工程的啟動及城市燃氣管道的全面鋪設(shè)中文字幕在线中文不卡，管道不停輸開孔、封堵技術(shù)已日漸廣泛用于石油国产AV真人一区二区凹凸、化工亚洲国产看片基地久久1024、燃氣、給排水多個領(lǐng)域免费人成在线观看爱品网，公司的產(chǎn)品已逐漸被廣大客戶認可一区二区欧美性爱。

It has been clear for some time that the groundwater level at Giza is rising. Pools were forming in front of the Valley Temple of Khafre, and people were worried that this might endanger the Sphinx and its temples as well. In early 2008, the SCA, in cooperation with Cairo University's Engineering Center for Archaeology and Environment, drilled four boreholes, each 4 inches in diameter and about 20 meters deep, into the bedrock at the base of the Sphinx. A camera lowered into each borehole allowed the engineers to examine the geological configuration of the plateau beneath the Sphinx. In addition, a small well called a piezometer was inserted into each borehole to monitor the underground water level. The investigation revealed that the water came up to about 15.6 meters above sea level, not an immediate threat to the statue, but cause for concern in the long term. I decided that it would be best to go ahead and address this threat before it could become more acute.

吉薩的地下水位呈上升趨勢已不是一天兩天的事了山谷中哈夫拉廟的前面正在形成一個個水塘，人們擔(dān)心這樣下去會危及獅身人面像和廟宇 2008年初超碰97在线网，在開羅大學(xué)工程中心的合作下美女叉开腿让男生桶爽视频，最高文物委員會著手處理考古和環(huán)境方面的問題他們在獅身人面像基座的基巖上鉆了四個直徑4英寸，深約20米的孔国产毛片短激情视频，每個深孔中放入一個攝相機国产精品无码一区二区应用，讓工程師們可以檢查到獅身人面像下方的高原地質(zhì)結(jié)構(gòu)此外，把一個稱為測壓表的管子插入到每個鉆孔中欧美性爱网站。，監(jiān)測地下水位調(diào)查顯示久久ri视频无码，目前水位已達海拔15.6米以上，雖還未直接威脅到雕像人人精品视频免费观看，但提醒我們要長期關(guān)注我決定三级黄性爱视频，最好防患于未然，在問題變得更尖銳之前采取一些措施應(yīng)對這一威脅

Automatic sprinkler system of water by pipeline leakage country "heating and sanitary engineering construction and acceptance norms" section 3.15 states: water pressure test, 10min with the pressure drop of not more than 0.05Mpa.

自動噴水系統(tǒng)管道的泄漏水量按國家《采暖與衛(wèi)生工程施工及驗收規(guī)范》第3.15條規(guī)定：水壓試驗時一级黄片三级黄色一级毛片三级毛片，10min內(nèi)壓力降不大于0.05Mpa黄色一级无码区。

Its main role is: prevention and remediation of water, air, sound pollution and solid contamination, water supply and sewerage engineering design, the design, research and development of new technology and new equipment.

其任務(wù)是掌握水、氣免费黄色网址1、聲国产老年妇女BBW视频、固體污染物的防治和治理、給排水工程設(shè)計国产黄色网站播放、環(huán)境管理與修復(fù)以及環(huán)保領(lǐng)域新理論欧美激情欧美激情欧美、新工藝和新設(shè)備的設(shè)計、研究和開發(fā)俄罗斯特级黄片免费观看一区二区三区。

An analysis on the investment and energy consumption of the water supply modes by roof water tank and variable velocity variable frequency pump was emphasized with an engineering example.

通過工程實例在线一区，重點分析了屋頂水箱給水方式和變頻泵給水方式下給水系統(tǒng)的投資和能耗情況，論證了屋頂水箱給水和變頻泵給水相結(jié)合是高層住宅小區(qū)最佳的給水方式yw193.com。

It was one term momentous engineering, whereas shallow burring pipe heat preservation ensure water supply normal parameter clause against that at Qing zang railway frozen soil environment carry into execution pipe shallow cover up water supply.

在青藏鐵路凍土環(huán)境中實施管道淺埋供水是一項重大的工程裸体视频一区二区三区，而淺埋管道保溫則是保證供水正常的首要條件。

Gorlov, now a professor of mechanical engineering at Northeastern University, says that instead of dropping dammed water onto turbines that spin and generate electricity, his patented hydropneumatic system is designed so that water never touches the turbine.

Gorlov 国产天美精品VA在线观看，現(xiàn)在教授的機械工程在東北大學(xué)中国免费三级片视频网站，說91午夜在线视频，不是放棄截流水進入渦輪機，附帶和發(fā)電国产一级视频在线观看免费，其專利的液壓氣動系統(tǒng)的設(shè)計无码国产有码精品91，使水不觸碰渦輪機。

It is a conclused that under the natural or earthquake only condition,water impounding only condition, the engineering rock mass is stable,under the conditions when the elevation of impounder water reaching 540～600m and at the same time the earthquake intensity being Ⅷ,it is unstable.

認為該工程巖體在天然或有蓄水的情況下是穩(wěn)定的jjzzz国产；在天然與地震共同作用下性黄色网站，它也是穩(wěn)定的；在有540～600 m蓄水位及地震時日韩精品一区二区熟女视频，它將有可能發(fā)生破壞人人尻人人操,人人尻人人操,人人尻人人操；在610 m蓄水位及地震烈度為Ⅷ度的情況下，它也是穩(wěn)定的亚洲第一精品在线。

With i iration from nature and some help from research at the Ma achusetts I titute of Technology （news - web sites）, a team led by Carnegie Mellon engineering profe or Metin Sitti built a tiny robot that can walk on water, much like the i ects known as water skimmers or Jesus bugs.

受大自然靈感的啟發(fā)和在美國馬薩諸塞理工學(xué)院研究人員幫助下三级网站免费观看，美國Carnegie Mellon大學(xué)工程學(xué)教授Metin Sitti領(lǐng)導(dǎo)的團隊，試制成功了世界上第一臺能在水上行走的微型機器人肏屄视频在线免费观看，它猶如水上蜻蜓類的昆蟲動物无码精品视频仙踪林。