loss of head
英 [lɒs ɒv hed]
美 [lɔːs əv hed]
水头损失
双语例句
- Loss of head due to pipe fitting
管道配件的压头损失 - The different structure of the three-way pipe lead to the different local loss of head, it cause a great influence on operating costs of irrigation.
“三通”结构形式的不同会造成不同的局部水头损失，对灌溉运行费用影响很大，所以对三通结构进行优化，减小灌溉水头和局部水头损失有相当大的意义。 - The utility model has the advantages of high speed of filtering, small loss of water head, and generous content of dirt.
无密实核心。具有滤速高、水头损失小、含污量大的优点。 - An OFDMA subcarrier allocation algorithm based on estimated difference value loss of head due to pipe fitting
基于预期容量损失的OFDMA子载波分配算法管道配件的压头损失 - Loss of head due to entrance
管进口段的压头损失 - Massive blood loss as aresult of severe head trauma.
头部严重受伤导致大量失血。 - It was never clear whether his aim was to get negotiations started without too much loss of face or just to head off sanctions.
无从知晓他的目的是为了体面的恢复谈判还是只为逃避制裁。 - 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.
采用水力模拟的方法对两个不同结构尺寸的污水泵站高位井的水流流态、泥沙淤积及水头损失等进行了模型试验。 - For open channel constant nonuniform flow which has local holdback, the research considering the change of hydraulic grade line after the loss of local water head is less at present, and the expression of the loss of local water head is not unified either.
对于有局部阻碍的明渠恒定非均匀流，考虑局部水头损失后的水面曲线变化的研究目前比较少，局部水头损失的表达式也不统一。 - Low-head power stations without storage are mostly belong to riverbed power stations, water head loss of diversion system account for a large part in the computing water head, so the water head loss from infall to draft tube outlet must be consided.
低水头径流式电站多属河床电站，由于水头较低，引水部分水力损失占设计水头比重较大，从进水口到尾水管出口的水头损失必须考虑。 - For the viscidity coefficient of chemical sludge is bigger than that of the sludge from conventional primary settling tank, the gradient of pipeline and the loss of water head ought to be ample properly in the design of the sludge-pipeline and sludge-pump.
鉴于化学污泥的粘滞系数高于常规初沉污泥，在排泥管及污泥泵房的设计时，管道坡度和水头损失计算宜留有适当的富余空间。 - The loss of efficient head of circulation pump in the primary loop of PWR will increase with the increase of resistance coefficient of JetPump under forced circulation.
强迫循环条件下，压水堆一回路主循环泵有效压头的损失随喷射泵阻力系数的增加而增加； - Among all the parameters which display the loss of rail, rail head wear is one of the most primary parameters.
在各种决定钢轨伤损的参数中，钢轨头部的磨耗值是最主要的参数之一。 - This fact is not convenient for defining coefficient of the loss of local water head in unison, neither convenient for considering qualitative analysis of the variation regularity of hydraulic grade line of open channel constant nonuniform flow after the loss of local water head.
这不仅不便于统一确定局部水头损失系数，也不便进行考虑局部水头损失后的明渠恒定非均匀流水面曲线变化规律的定性分析。 - On the Relation of Lifting and Loss of Water Head in Oxidation Ditch with Brush Aerator
氧化沟曝气转刷提升水头与水头损失的关系及应用 - The Exploration of Value of Loss of Digitations of Hippocampal Head in Diagnosis of Hippocampal Sclerosis
海马头部浅沟消失对海马硬化诊断价值的探讨 - Research on the loss of hydrostatic head and the gas communication caused by the gelling of cement slurry
水泥浆胶凝引起的失重和气侵的研究 - The RNG k-ε turbulent model with wall-function law can be used to simulate flow field and loss of head in the passages of the pumping station.
考虑壁面律的RNG湍流模型在泵站流道内特性数值模拟和外特性预测研究方面有较好的推广价值。 - Determination of the Maximum Loss of Head Filtered in Filtering Pond
滤池最大过滤水头损失值的确定 - The author discussed the ways of reducing the micro-irrigation system's pressure at work and the functions of antifouling based on the formulation of the friction loss of micro tube emitter head.
本文从微管滴头摩阻水头损失计算公式，分析探讨减少滴灌系统运行工作压力和抗堵塞性能的途径。 - Determination of Energy Loss Coefficient of Infrared Burner Head
红外燃烧器头部能量损失系数的确定 - Calculation formula of velocity distribution, boundary layer thickness, friction force and loss of water head are given out, in accordance with the result from theory analysis of similitude solution.
对于速度边界层提出了相似性解的解析结果，给出了速度分布、边界层厚度、摩擦阻力和水头损失的解析计算表达式。 - Loss assessment models of yield and quality caused by Fusarium head blight
小麦赤霉病的为害损失估计模型 - Head loss in fiber bundle filter bed was studied experimentally, the existing equations of head loss ( produced) by flow through fibrous media were reviewed and an equation of head loss of fiber bundle filter bed was derived on the basis of cell model.
研究了纤维束滤床的水头损失，简要评论了现存的通过纤维介质流动的水头损失方程，在池模型基础上建立了纤维束滤床的水头损失方程。 - The Newton iteration method is used to solve the economic pressure on the unknown node, so as to calculate the economic head loss and economic pipe diameter of each section, and economic head of second-stage pump station.
采用牛顿迭代法来求解各未知节点的经济水压，进而得出各管段的经济水头损失、经济管径和水源二级泵站的经济扬程。 - These phenomenon jeopardize the condition of the project seriously, and it is the main factor that influences the loss of local water head.
这些现象严重危害管道的工况，并且是影响阀道局部水头损失的主要因素。 - At the same time the sensitivity of bed roughness was calculated due to the coefficient of local head loss with this program and it was found that the coefficient of local head loss has great influence on bed roughness.
同时，也利用本程序计算分析了局部水头损失系数对糙率的敏感度，提出局部水头损失对糙率也有很大的影响。 - However, the head molded line of the nozzle ring blades should be optimized by combining all working condition of the turbine when the opening of nozzle ring become big, in order to reduce the windward block area and the collision loss of blades head.
但是，在喷嘴环大开度时，喷嘴环叶片的头部型线需要结合涡轮所有工况进行优化，减小叶片头部的迎风阻挡面积，降低叶片头部的碰撞损失。