井下總管 的英文怎麼說

中文拼音 [jǐngxiàzǒngguǎn]
井下總管 英文
ground boss
  • 井 : Ⅰ名詞1 （從地面往下鑿成的能取水的深洞） well 2 （形狀像井的東西） sth in the shape of a well 3 （...
  • 下 : 下動詞1. （用在動詞后,表示由高處到低處） 2. （用在動詞后, 表示有空間, 能容納） 3. （用在動詞后, 表示動作的完成或結果）
  • 總 : Ⅰ動詞（總括; 匯集） assemble; gather; put together; sum up Ⅱ形容詞1 （全部的; 全面的） general; o...
  • 管 : Ⅰ名詞1 （管子） pipe; tube 2 （吹奏的樂器） wind musical instrument 3 （形狀似管的電器件） valve;...
  1. In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively

    本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討，取得以下主要成果：一、結合小灣工程導流洞改建，對高水頭（ 252m ） 、大泄流量（ 1400m ~ 3 s ）條件下旋流式豎井中的水流運動特徵進行了比較全面的測量，包括空腔形態、徑向流速分佈及井壁壓強等；二、提出了豎井空腔段螺旋水流水力計算方法，其計算結果與實測值吻合良好；三、利用試驗與計算結果，對旋流式豎井的消能機理進行了探討，對豎井各部分的消能能力有了總體認識；四、對豎井下部消力井的合理井深進行了優化試驗研究，發現消力井合理深度為0 . 9d左右；五、通過試驗研究，歸納出豎井水流總摻氣量估算方法，為導流洞排氣方案的設計提供了參考依據；六、在高水頭、大流量條件下，豎井空腔段下部流速很高，盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓，但空化數依然較低，因此豎井的空化空蝕始終是工程界關注的重大問題。
  2. Adopt " water - jet " method to embedded well point pipe. connect to the water - collect main line while the well point pipe is in the position

    採用"射水法"埋設井點管.井點管下沉到位后，與集水總管連接
  3. The perfessional reorganization and reformation have urged the estabilishment of supply chain, such as oilwell cement and something else, the material general company and supplier of oilwell cement are the main acesses of supply chain, the material general company is the main organizer for oilwell cement supply chain who responsible for the organization and coordination of supply chain, the corporation whose operation is took under well, the material general company, the concrete supplier, raw assistant material supplier and every kind of transporter are the cells of supply chain, to estabilish the strategical patnership with the next node is the important foundationtone of oilwell cement supply chain

    專業化重組改革，催生了油井水泥等物資供應鏈的建立，在油井水泥供應鏈中，物資總公司與油井水泥供應商是供應鏈的主要介面，物資總公司承擔了供應鏈管理的組織、協調職責，是油井水泥供應鏈的主要組織者，井下作業公司、物資總公司、水泥供應商、原輔材料供應商及各類運輸商是供應鏈的組成細胞，與下一個節點建立戰略合作夥伴關系是油井水泥供應鏈管理的重要基石。
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