low head 中文意思是什麼

low head 解釋
低架式
  • low : adj 1 低的；淺的，矮的。 low flight 低飛。 a low temperature 低溫。 low tide [water] 低潮。 The g...
  • 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. According to the fact that freeze - resisting measure is needed to be taken for the gates operating in winter and low head arch gates, electrothermic freeze - resisting device is designed in this thesis

    本文根據冬季有運行要求的閘門及低水頭弧形閘門需要採取防凍措施的實際情況，研究設計了一種電熱型防凍裝置。
  2. Standard specification for reinforced concrete low - head pressure pipe

    鋼筋混凝土低水頭壓力管標準規范
  3. Standard specification for reinforced concrete low - head pressure pipe metric

    鋼筋混凝土低水頭壓力管的標準規范
  4. The valve seat shall be an elastomeric seal that will permit seating at low - head pressure, and an arrow shall be molded on the valve body for permanent visibility to indicate the intended direction of flow

    閥座應該是彈性密封，它使得閥座處于較低的排出壓力下，箭頭應該永久性清晰可見地模鑄在閥體上，標明計劃的流向。
  5. Hexagon socket head cap screws with centre, with low head

    內六角中心低圓柱頭螺釘
  6. In many low head hydraulic structure, expecially canal system structure, we are used a dopting underflow energy dissipation

    在眾多的低水頭水工建築物中，特別是渠系建築物中的涵閘下游，多採用底流消能。
  7. Abstract : a research on theory and practice is conducted on the acoustic methods of discharge measurement in low head hydropower plant. taken hydraulic efficiency experiment in certain hydropower plant as examples, the general methods about how to locate the discharge measurement plane, install transducers and choose the integration methods are put forward. an improvement method is proposed finally

    文摘:從理論上和實踐上，對低水頭電站超聲波測流進行了較為詳細的研究，並以某水電站為例，對測流斷面定位、聲路布置和面積積分給出了一般方法
  8. Under the function of gravity, as long as the falling head exist, liquid will flow from high head to low head

    它具有分佈廣、埋藏淺、厚度大、水質好、水量豐富等特點。是淺井開採的主要目的層。
  9. Discussion on optimizing design of stilling pool in low - head sluice across river

    低水頭攔河閘消力池優化設計探討
  10. Minyu low head screens are horizontal screens to which an extremely powerful linear vibrating motion is imparted by two unbalanced eccentric shafts and weights. the screens ecciciently handle a large amount of materials. resist clogging, and suit best for classifying small granules. some features of the mlh screen are as follws

    振動篩-振動篩是利用電動激振器或偏心軸偏心塊作為振動源，使物料在振動篩篩網上被拋起，振動篩同時向前作直線運動或做橢圓運動及復雜運動，以合理匹配的振動篩篩網達到篩分目的。
  11. Analysis on transient process in low - head pumping installation during starting period

    低揚程水泵裝置起動過渡過程分析
  12. Analysis on transient process in low - head pumping installation during its suspending period

    低揚程泵裝置停泵過渡過程分析
  13. Domestic magnesium - silicon jade total hip prosthesis has too low head - neck ratio to result in enough range of motion that fulfilled daily living after total hip arthroplasty

    國產鎂硅玉全髖假體由於頭頸比太小，在任何安置方位內其活動范圍都較小，將難于滿足日常生活需要。
  14. The axial - flow turbine generator set is suitable for low head from 2m to 70. its feature is that the water flow passes through the runner axially. the axialflow turbine generator set can be classified into two forms according to the runner construction : one is fixed blades propeller for small variation of head and power, the other is movable blades kaplan for large variation of head and power

    貫流式水輪發電機組是低水頭大流量電站的較好機型，一般適用於水頭2 ~ 15米，其特點是水流從進水口到尾水出口都是軸向的，流道基本上成直線，因而貫流式水輪發電機組具有水流特性好，效率較高等特點。
  15. Cut - off flow technique with loose - leaf rapid - drop gate at low - head pumping stations

    低揚程泵站活頁式快速閘門斷流技術改造措施
  16. Research on low - head drip irrigation system

    低壓滴灌系統研究
  17. Based on the model experiments, the way how to manage the multi - outlet sluice lock was provided. above all, this hydraulic structure is both efficient and economic than traditional dissipater for the projects of low head & low fr current, it will reserve the abroad practice

    本文認為低鼻坎消力戽和傳統消力戽的適用條件有很大的區別，前者完全可以在布置了電站和船閘且地質條件較差的工程中被採用。
  18. The selection of impoundment level and dam site, the general layout, the design optimization of structures, construction diversion and construction period all are the important context of the design of hydropower station across river with low head

    蓄水位選擇、壩址選擇、樞紐布置、建築物設計優化、施工導流與工期等是低水頭河床式電站設計的重要內容。
  19. All mathematical methods can be used for reference in the design and operation of large low - head pumping stations

    本文所建數學模型可供泵站工程研究、設計、運行應用。
  20. This paper studies the influence of different riverside shape on the flow condition of low - head hydraulic lock ' s outlet area through mathematical computation and examples of project, and finds out the riverside shape which is the most advantageous one

    摘要通過概化模型計算並結合工程實例分析，研究了凹形和凸形河岸對低水頭樞紐船閘口門區水流條件的影響，指出了對低水頭樞紐船閘口門區通航水流條件相對有利的河岸形態。
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