水下導引頭 的英文怎麼說

中文拼音 [shuǐxiàdǎoyǐntóu]
水下導引頭 英文
underwater self-homing device
  • : 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...
  • : 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)
  • : 動詞1. (引導) lead; guide 2. (傳導) transmit; conduct 3. (開導) instruct; teach; give guidance to
  • : Ⅰ動詞1 (牽引; 拉) draw; stretch 2 (引導) lead; guide 3 (離開) leave 4 (伸著) stretch 5 (...
  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、大泄流量情況時存在的一些力學問題進行了研究和探討,取得以主要成果:一、結合小灣工程流洞改建,對高( 252m ) 、大泄流量( 1400m ~ 3 s )條件旋流式豎井中的流運動特徵進行了比較全面的測量,包括空腔形態、徑向流速分佈及井壁壓強等;二、提出了豎井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,歸納出豎井流總摻氣量估算方法,為流洞排氣方案的設計提供了參考依據;六、在高、大流量條件,豎井空腔段部流速很高,盡管流螺旋運動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. U. s. biologists were counting on an underwater recording of humpback whale songs to lure two injured whales back down the sacramento river and toward the ocean

    美國生物學家利用座鯨聲音的錄音,試圖兩只受傷鯨魚掉離開沙加緬度河回到海洋去。
  3. As design is an important aspect for kitchen bathroom products, in order to guide kitchen bathroom consumption trend and promote manufactures to improve their designing ability, cikb 2007 will set up " innovative design award ". cikb office will invite experts to evaluate candidate exhibits on site and present the award during the show period

    由於整體廚房整體衛浴以及廚房衛浴產品多是以設計為,為了廚房衛浴消費,同時促進製造企業提高設計平, cikb2007專門設立了「廚衛設計創新大獎」 ,參展企業的新產品重點在設計創新,在滿足消費多樣化需求上功夫。
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