豎井排水管 的英文怎麼說

中文拼音 [shùjǐngbèishuǐguǎn]
豎井排水管 英文
chimney drain
  • : Ⅰ形容詞(跟地面垂直的; 從上到下的) vertical; upright; perpendicular Ⅱ動詞(使物體跟地面垂直) se...
  • : 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 (...
  • : 排構詞成分。
  • : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
  • : 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;...
  • 排水管 : drain-pipe; pipe weep; exhaust water pipe; fall tube; scupper pipe; scupper shoot; off-take pipe
  • 排水 : drain off water; drain away water; dewatering
  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泄洪洞應用於高頭、大泄流量情況時存在的一些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,對高頭( 252m ) 、大泄流量( 1400m ~ 3 s )條件下旋流式中的流運動特徵進行了比較全面的測量,包括空腔形態、徑向流速分佈及壁壓強等;二、提出了空腔段螺旋力計算方法,其計算結果與實測值吻合良好;三、利用試驗與計算結果,對旋流式的消能機理進行了探討,對各部分的消能能力有了總體認識;四、對下部消力的合理深進行了優化試驗研究,發現消力合理深度為0 . 9d左右;五、通過試驗研究,歸納出流總摻氣量估算方法,為導流洞氣方案的設計提供了參考依據;六、在高頭、大流量條件下,空腔段下部流速很高,盡流螺旋運動引起的離心力可以確保壁壓強保持正壓,但空化數依然較低,因此的空化空蝕始終是工程界關注的重大問題。
  2. After analyzing the adaptability of molepipe drainage, an underground water table regulation is given out. finally, the efficiency of the drainage technique is determined after its comparison with gutter drainage and vertical drainage, and deep research on the effect of molepipe drainage on water table in a typically selected area

    對暗的適應性進行分析,提出了灌區地下調控標準,與明溝灌相比較,對暗典型區調控地下位的效果進行深入的分析研究,以確定這一技術的效果。
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