pipe losses 中文意思是什麼
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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。 -
Meanwhile, it puts forward the exact demand to the indicators of coal for gasification. it systematically studies the thickness of economical heat preservation and calculation process of resistance loss of delivery pipe for analyzing and appraising the techno - economic of hot coal gas ' s delivery pipes. it sets the mathematic model for the calculation of economical heat preservation thickness and resistance losses of conveying pipes, compiles the computer program, dutti and dutt2 and draws the block diagram of relevant computer program
為便於熱煤氣輸送管道的技術經濟分析與評價，對輸送管道經濟保溫厚度和輸送管道阻力損失的計算過程，進行了系統的研究，建立了輸送管道經濟保溫厚度和阻力損失計算的數學模型，繪制出相應的計算機程序框圖，編制了計算機程序dutt _ 1和dutt _ 2 ；並對熱煤氣的混合燃燒過程進行了研究。 -
Plastic pipes, known for low losses, energy conservation, material saving, environment friendliness, and convenience for contruction, now has been the leading force for urban construaction network in 21st century with its extensive application in a wide range of fields such as building drainage, urban drainage, and gas pipe
憑著塑料管材有水流損失小、節能、節材、保護生態、施工便捷等優點，廣泛應用於建築給排水、城鎮給排水以及燃氣管等領域，成為新世紀城市建設管網的主力軍。 -
Fluid physical properties, pressure measurement, forces due to static fluids, bernoulli ' s equation, general energy equation, energy losses due to friction, pipe line systems, pump selection and application, open channel flow
本課程含流體物理性質、壓力測量、沉體平面和曲面所受作用力、柏努利方程式、一般能量方程式、摩擦形成的能量損失、管線系統、明渠流、泵的選擇與應用。 -
The calculation result of passed flow rate in pipe section of pipeline network is significantly influenced by the momentum exchange and the local energy losses at junctions for the pipeline network comprised of the pipes of larger diameter and shorter length
摘要對于管徑較大、管段長度較短的管網，結點處的動量交換和局部能量損失顯著影響管網中管段通過流量的計算結果。 -
How to locate the position of the underground pipe leakage presisely, has always been a big problem for water supply system and civil construction, eakage not only causes losses of water but also makes great damage to the fundamental establishment
摘要地下供水管道漏損的準確定位問題一直是困擾供水系統和市政建設的難題，它不僅造成水資源的損失，而且對基礎設施的破壞較大。 -
The mathematical analysis shows that, with disregarding local head losses and by means of different simplified rigid models, the calculated results of the maximum pressure in a pressurized pipe system containing trapped air mass are equal to and independent of the initial length of the water - column
摘要通過數學分析證明，在不計局部水頭損失時，目前常用的幾種簡化剛性數學模型的最大氣壓計算結果相等，並與管道內初始充水段長度無關。
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