loss-of-head 中文意思是什麼

loss-of-head 解釋
壓頭損失
  • loss : n. 1. 喪失；丟失，遺失。2. 減損，損失，虧損（額）；損耗；減少，下降。3. 失敗；輸掉。4. 錯過；浪費。5. 損毀；【軍事】傷亡；〈pl. 〉 傷亡及被俘人數。
  • of : OF ＝Old French 古法語。
  • 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...
  1. A calculative formula and experimental study on loss - of - head of taper nozzle

    圓錐形噴嘴水頭損失的計算公式與試驗研究
  2. Modification of formula of head loss for long - throated flume

    長喉槽水頭損失公式的修正
  3. Using the advanced technology by its head office ( newkey co., ltd. ), it produces various kinds of alumina black and white ceramic products. the component alumina ceramics, which are widely used in electron components, devices, electrical products, enjoy low loss of high frequency, high insulating strength, good specific volume resistance, small dielectric constant, high mechanical intensity and excellent airtightness and thermal and chemical stability

    本公司根據目前市場需求，生產出各種型號的黑、白陶瓷產品，廣泛應用於電子、電工、化學工業、紡織工業、水暖、宇航、環保等諸多方面，系列產品有高頻損耗少，比體積電阻大，介電常數小，強度高，氣密性、熱穩定性、化學穩定性好等特點。
  4. But now it ' s urgent to adopt new methods for calculating the head loss of regional drainage due to some factors such as long length, large flow quantity and probable strong topographic change

    由於存在管線長、流量大以及區域地形變化幅度可能較大等因素，建設區域排水系統需要採用新的方法較為準確地計算水頭損失。
  5. The flow regime, sediment deposition and the loss of head of two head tanks of the sewage pumping station with different dimensions are studied by using a hydraulic model test method

    摘要採用水力模擬的方法對兩個不同結構尺寸的污水泵站高位井的水流流態、泥沙淤積及水頭損失等進行了模型試驗。
  6. A new method for studying friction factor of head loss

    沿程水頭損失系數研究的一種新方法
  7. Chiu and seman(1971)studied the head loss of flows transporting sediment in circular and square pipes with spiraling motion.

    邱和思門（1971）研究了在圓管和方形管中輸沙時具有螺旋運動的水流的水頭損失問題。
  8. The rukai s flower is the lily, a symbol of purity. if a rukai woman transgresses the tribe s moral code, she loses her right to wear lilies on her head. this is a matter of great humiliation and loss of face at rukai community gatherings and dances

    魯凱以百合為族花，百合是純潔的象徵，女性如果行為出軌，會被剝奪頭戴百合的權利，在族人聚會的慶典舞會上也將落落寡歡，顏面無光。
  9. Tihon began scratching his back with one hand and his head with the other, and all at once his countenance expanded into a beaming, foolish grin, showing the loss of a tooth that had given him his name, shtcherbatov

    吉洪用一隻手抓了抓背，用另一隻手抓了抓頭，忽然，他那張麻臉拉長了，堆起一副傻笑，露出了缺牙為此，大家又叫他缺牙巴。
  10. Based on the research and model test, the head loss of flap valves is analyzed by both mathematical physics method and the equation of criterion, and the impulsive force and open angle of flap valve are researched. the flap valve approximate - calculation method is the emphases in this paper. the design methods and using effect of air - filled floating flap valve are studied in the paper by combining with engineering example

    在總結前人研究的基礎上，對照試驗結果，通過數理解析和準則方程分析了拍門水頭損失，研究了拍門水流沖力的求解和拍門開啟角度的求解，著重研究分析了拍門近似計算方法，分析拍門在水中的運動規律，並結合工程實例，研究探討充氣浮箱式拍門的配重方法及其使用效果，為今後開拓充氣浮箱式拍門的運用領域作些探討研究。
  11. These tests enable the better management of the crop ' s nitrogen requirement to prevent head sterility and loss of production when excessive amounts of nitrogen fertilizer are applied

    這些測試方法使人們能夠更好地管理作物的氮素需求，以避免過量施用氮肥帶來的稻穗不育及減產。
  12. The main achievements are as follows : it is verified that there is an unique mean square solution to the stochastic surge model ; the formulas for probability density function of head loss and the maximum relative surge level were deduced ; the joint probability density function for solving surge process and the mean head process of simple hydraulic system were also derived

    主要研究成果有：證明了調壓室涌浪隨機模型存在唯一的均方解；推導出了水頭損失和最大相對涌浪值的密度函數計算公式；求解了調壓室涌浪解過程的聯合密度函數和簡單水力系統的水頭均值過程等。
  13. Discuss on the computational equation for the head loss of the unit length of pipe

    關于管道單位長度水頭損失計算公式的探討
  14. Actually, in the tube engineering, the proportion of the loss of local water head in the loss of pipeline water head is big

    在實際管道工程中，閥門閥道的局部水頭損失占管路水頭損失的比例是相當大的。
  15. For many men a full head of hair is the foundation of their confidence, so the loss of his hair is a stressful incident in any man ' s life

    對于很多男人來說，擁有一頭濃密的頭發是其自信的根基，所以掉發在任何一個男人的生命中都是一件沉重的事情。
  16. ( 2 ) feclsused as a coagulant when the water quality after filtration has tiny difference in the direct filtration process, compared with the finer sand media, the velocity increase of the water head loss of the coarser sand media is slower, and its filtration cycle is longer

    （ 2 ）在直接過濾過程中，採用fecl _ 3作為混凝劑、出水濁度保持基本相同時，粗濾料的水頭損失增長速度較慢，過濾周期比較長。 （ 3 ）
  17. Chiu and seman ( 1971 ) studied the head loss of flows transporting sediment in circular and square pipes with spiraling motion

    邱和思門（ 1971 ）研究了在圓管和方形管中輸沙時具有螺旋運動的水流的水頭損失問題。
  18. Loss of head

    水頭抑損
  19. Loss of head is minimized by the balanced disc and its " aerofoil " design. streamlined body without pockets contributes to straight - through flow

    通過平衡閥瓣及其「翼型」結構，將水頭損失（或位差損失）降到最小程度。流線型閥體，不再需要凹穴來幫助流體直線流通。
  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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