head loss
英 [hed lɒs]
美 [hed lɔːs]
n. 扬程（压头、水头、水力）损失
双语例句
- Chiu and Seman ( 1971) studied the head loss of flows transporting sediment in circular and square pipes with spiraling motion.
邱和思门（1971）研究了在圆管和方形管中输沙时具有螺旋运动的水流的水头损失问题。 - As a porous support device has larger opening percentage, the filtering head loss can be greatly reduced.
由于本实用新型的多孔支撑装置开孔率很大，可大大减小过滤水头损失。 - According to adjustable head fall mixer, the effect of mixer parameters on head loss was studied in the model experiment.
通过模型试验，研究可调式跌水网格混合器主要设计参数对水头损失的影响。 - Analysis and Experimental Research on the Head Loss of Stratified Flow in Gas-Existed Horizontal Pipe
存气水平管道分层流动阻力分析与实验研究 - Discussion on friction head loss calculation for large diameter PCCP
大口径PCCP管道沿程水头损失计算探讨 - Fluid drag and head loss
水流阻力和水头损失 - Discussion on the calculation method of the frictional head loss in the water transportation and distribution pipe
输配水管道沿程水头损失计算方法探讨 - The full round port area provides maximum flow capacity and minimum head loss.
完全的圆形流道截面能够提供最大的流量和最小的流压损失。 - The conflict of head loss development and effluent quality decline should be fully considered in determining backwashing parameters.
好气滤池的反冲洗应综合考虑反冲洗后滤池出水水质下降和水头损失恢复之间的矛盾。 - Features short end-to-end dimensions, light weight stainless steel body, and the lowest head loss available.
主要特点在于端到端尺寸较短，轻型不锈钢阀体，落差损失最小。 - Head loss and relation are included in the models, which greatly improves utility and reasonability of these models.
模型中考虑上下游电站间水头联系，计及水头损失，增强了调度模型的实用性和合理性。 - Unique design features in the 1710 give improved flow measurement accuracy as well as a lower head loss characteristic compared to other valves.
与其它阀门相比，1710独特的结构特征能够改善流量的量测精度，减少压力损失。 - Experimental Research on the Head Loss of the Filter and the Adsorption Bed
过滤池和吸附床水头损失的实验研究 - Simulation and experimental study on head loss of heat exchanger pipe with helical baffles Leaching of soil by simulated acid rain made soil acidified and base ions lost.
螺旋折流板换热管水力损失数值模拟及实验通过模拟酸雨淋洗土壤，造成土壤酸化和盐基流失。 - It is shown that the relationship exists among the location of the flaring gate piers, the Froude number at the section of starting flare, the weir head, the head loss and the gate width.
研究了宽尾墩位置、始扩点水流佛汝德数与堰上水头之间的关系，导出了与水头损失、闸门宽度有关的计算公式。 - The head loss of diffluence is bigger than that of the conflux.
分流情况下的水头损失比汇流情况下的水头损失要大。 - The critical velocity and the head loss gradient of slurry pipelines are important design parameters.
临界速度和水头损失坡降是浆体输送管道的重要设计参数。 - The conflux is 21.10%. The head loss of diffluence is bigger than that of the conflux.
汇流量占总降雨的21.43%。分流情况下的水头损失比汇流情况下的水头损失要大。 - Flow regime and head loss of two different tailrace systems in hydropower station were investigated.
对两种不同的尾水系统布置方式进行了流态和水头损失的对比分析。 - Based on the analysis of hydraulic theory and experimental data obtained by author, it is confirmed that Chevielev's formula can be used for computing the hydraulic head loss of plastic tubes.
在理论分析和实测资料的基础上，作者肯定了谢维列夫公式能用来分析和计算塑料管的水头损失。 - Experimental study on head loss increases at the trashrack of a hydropower plant due to rust and blockage
水电站拦污栅锈蚀和堵塞增加水头损失的试验研究 - The theoretical analysis and experimental study of filtering and inverse washing performance of sandy filter used in water-saving irrigation project have been done. A new relation equation of filter resistant coefficient and Reynolds number and a new calculating formula of initial head loss have been presented.
对节水灌溉工程中使用的砂过滤器的过滤与反冲洗性能进行理论分析和试验研究，提出了新的过滤阻力系数与雷诺数的关系式，给出了新的计算初始水头损失公式。 - Head loss coefficients of gooseneck have been determined and empirical formulas are given.
确定了鹅颈管的阻力系数，并导出了它的经验计算式。 - The variation of the flow rate and the head loss of the pump discharge are studied in the paper when the leak and the operating valve happened simultaneously.
研究在水平管道中当泄漏和阀动作同时发生时，泵的出口流量和压力的变化。 - The design method of controlling the maximal laying length by using the head loss is discussed.
采用水头损失控制喷水带最大铺设长度的设计方法，将首末端的水头损失限定在30%以内。 - Influential factors of friction factor of head loss are analyzed by adopting artificial neural network ( ANN).
采用神经网络（ANN）方法对沿程水头损失系数的影响因素进行了分析。 - However, the double aeration BAF accelerated the head loss of the filter, which shorten the backwash cycle.
但是，二次曝气BAF加快了滤池内水头损失，缩短了反冲洗周期。 - We will find that the head loss depresses the amplitude and the velocity of the bubble but enhances the curvature of the bubble.
我们发现：水头损失降低bubble的振幅和速率，但是增大bubble的曲率。 - This paper focuses on analysis of the flow pattern, flow rate, pressure, head loss and other hydraulic characteristics.
主要研究对象为溢洪道、电站进水口和冲沙洞，重点分析了流态、流速、压强及水头损失等水力特性。 - Have some innovation on the design of current biological filter head loss relying on experience and common filter.
为目前设计中生物滤池水头损失值依靠经验取值和借鉴普通快滤池的情况提出了一定的革新。