head of water 中文意思是什麼

head of water 解釋
水頭
  • head : n 1 頭，頭部，首。2 頭腦，才能；智力，想像力，理解力。3 前部，上部；頂端，尖突部；船長；（書頁等...
  • of : OF ＝Old French 古法語。
  • water : n 1 水；雨水；露；〈常作 pl 〉 礦泉，溫泉；藥水。2 〈常 pl 〉水體；水域；水道；海；湖；河；海域；...
  1. At first i put the head of shovel that was very clean after being washed at the passage of the stove, poured some barnyard grass flour into my can container, then added likely water, mixed with a spoon to be paste, and poured a part onto the burning hot shovel with a sound

    我先把洗得乾乾凈凈的鐵鍬頭支在爐口上，把稗子面倒一些在罐頭筒里，再加上適量的清水，用匙子攪成糊狀的流汁，哧啦一聲倒一撮在滾燙的鐵鍬上。
  2. This paper analysed working principles and controling features of water lifts about the head pressure transition. plc was used to operate controling system so as to work the system well

    摘要對水頭差壓力轉換提水裝置的工作原理及控制特點進行了分析，使用可編程式控制制器（ plc ）控制系統運行，使系統很好的工作。
  3. A scheme to be formulated and submitted for approval to the harbour commissioners for the exploitation of white coal hydraulic power, obtained by hydroelectric plant at peak of tide at dublin bar or at head of water at poulaphouca or powerscourt or catchment basins of main streams for the economic production of 500, 000 w. h. p. of electricity

    有個建造水力發電廠的計劃：利用都柏林沙洲的滿潮噗啦呋咔272或鮑爾斯考特瀑布273的水位差主要河流的流域來開發白煤水力發電，經濟生產五十萬水馬力的電力。擬好后，將提交港灣委員會，以便獲得批準。
  4. 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。
  5. To provide necessary data for design bypass pipe, an enlargement to bi liu river reservoir, the following problems have been studied by hydraulic model and theoretical analysis : the energy losses in water head of the bypass pipe system and of the flow - control valve and their scale effects, measurement and calculation of the discharge of the bypass pipe system during the bypass pipe system operation with and without the new water power station, the hydraulic characteristics of the water tunnel and draw - off pipe, the flow rate of the aqueduct bridge and the draw - off pipe and the water elevation of the flow in the aqueduct bridge during the old water power station operation with and without the new water power station

    大連市碧流河水庫供水工程取水頭部由引水渡槽、節制閘、進水閘、泄水閘等建築物組成。由於本工程場地條件限制，增設旁通管后布置非常緊湊，管道急轉角度大且轉彎距離較小，對于管內水流流態是否滿足要求，需要經過模型試驗進行論證，以確保工程的可靠性。旁通管具有上水與泄水要求，對其過流能力也要經試驗確定，為碧流河水庫增建旁通管設計提供依據。
  6. When he swims in the sea a big jet of water comes out into the air from the hole in his head.

    當他在大海中游泳的時候，一股水柱就會從他頭頂上的洞里噴出，噴向空中。
  7. Composed of extruder, head, cooling water tank, first puller, hot stretch able bellow, second puller, pressing device, shaping box, third puller, coiling device and electrical control system, the set has been mainly used in the production of machine used pp packing straps

    該機組主要由擠出機、機頭、冷卻水槽、一次牽引，熱風拉伸烘箱、二次牽引、壓花裝置、定型箱、三次牽引、卷取裝置及電器控制系統等構成，主要用於pp機用打包帶的生產。
  8. Water information telegraph is a kind of telegraph, by which the water information observed in each water information station is transmitted obeying the rules of water information telegraph. its head is a six - bit - character string, and its body is composed of some five - bit - character strings and expresses the water information. blanks divide each other between the neighboring strings of a telegram

    水情電報是水情測站為發送觀測到的水情信息而按水情拍報辦法所拍發的電報，分為報頭與報體，報頭為一個字元串，報體由多個五位字元串（五位碼）按水情電報規則組成且水情信息放于其中，報頭與報體、各五位碼間以空格分隔。
  9. Recommends that these should be done by careful hydraulic calculation and rational selection of head and water flow of pumps

    建議應認真進行水力計算，合理選擇水泵揚程和流量。
  10. The pressure of pressure stabilizing pump will be settled on the basis of its delivery head which is not calculated but determined by the delivery head of main fire pump as the function of it is to stabilize the pressure inside the fire water system

    穩壓泵的壓力設定值決定於穩壓泵揚程，穩壓泵的揚程一般不另行計算，而是採用消防主泵的揚程，其原因在於設置穩壓泵的目的是使消防給水管網的水壓穩定。
  11. In attendance : director of water supplies acting assistant director new works acting, water supplies department head 705 - civil engineering

    出席人員：水務署署長署理水務署助理署長設計及建設署理
  12. By sampling in different filter layer and analyse of water head damage in all sampling point, i draw a condusion about filter function of porcelain sand filter is superior to the general filters

    通過濾層分層取樣，對各取樣點的水頭損失的分析，得出瓷砂濾料較一般濾料過濾性能優越的結論。
  13. With these i came on deck, put down my own stock behind the rudder - head, and well out of the coxswain s reach, went forward to the water - breaker, and had a good, deep drink of water, and then, and not till then, gave hands the brandy

    我把這些吃的都帶到甲板上，放在舵柄後面副水手長夠不著的地方然後來到淡水桶旁，喝了個夠最後才把那點白蘭地遞給漢茲。
  14. Design for stoplog gate with high water head of temporary shiplock of tgp

    三峽臨時船閘高水頭疊梁門設計
  15. On the basis of analysis for recharge, flow - off and drainage of research area, the paper concludes that the main possible cause for the fall of water head is groundwater exploitation by comparing the curve of rainfall - time and the curve of observation heads of some observation well

    在充分分析研究區補給、徑流和排泄規律的基礎上，文章通過比較降雨歷時曲線、部分觀測孔觀測水頭曲線得出開采量可能是影響水頭下降的主要因素。
  16. Comparison of water level between measured and computation shows that the local head loss coefficient cannot give head loss by spur dike completely, and the effective area of passage is difficult to be ascertain. for this reason the two methods for water surface profile computation cannot predict the raise of water level upstream the spur dike accurately

    計算結果表明，局部水頭損失系數並不能完全反映出由於丁壩阻擋所帶來的水頭損失，而丁壩附近的有效過水面積難以準確地確定，這些導致前兩種方法均不能很好地計算出丁壩上游水位的壅高值。
  17. The head of water is maintained at a permanent level so that the velocity and curve of the jets remain constant

    水頭被維護在一個永久水平以便噴氣機的速度和曲線依然是恆定。
  18. The models are compact and reliable operation, high in average efficiency. it is applicable to the head of water, and the power station which have great load changes

    該機型結構緊湊，運行可靠，平均效率高，適用於水頭及負荷變化較大的電站。
  19. New zhengzhan machine co., ltd locate the chinese stone material produces base china. head of water, is a to be engaged in to produce a business enterprise of high - tech development that each kind of stone material processes the equipments exclusively

    正展機械有限公司，位於中國石材生產基地中國.水頭，是一家專門從事生產各類石材加工設備的高科技研發型企業。
  20. In this article, through lab and engineering site trials that the physical data of new type pipe materials is corrected, the results are as follow : ( l ) the expansion coefficient of new plastic pipe materials is more large than that of iron pipe. ( 2 ) new plastic pipe materials have different heat - resisting character and according to the water temperature to choose pipe materials ; ( 3 ) the loss of head of water for new type pipe materials is more smaller than iron pipe and also correct the loss of head of water that calculated by theory ; ( 4 ) probing into the press - resistance character of new plastic pipe materials

    本文通過試驗室試驗及工程現場試驗，對新型給排水管材的幾個重要的物理性能參數進行實驗測定，糾正了以往的錯誤認識。研究結果表明： （ 1 ）新型塑料管材線脹系數遠遠大於鋼管和鑄鐵管，設計和施工中要嚴格考慮管道的伸縮； （ 2 ）新型塑料管材耐高溫性能各不相同，需根據管內水溫選定管材； （ 3 ）新型管材水頭損失遠小於鋼管，並對原水頭損失計算公式進行了修正； （ 4 ）對于塑料管材的耐壓性能進行了探討。
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