This paper derives the fully developed laminar flow velocity in rectangular ducts and then discusses the volumetric flow rate the friction factor and the pressure drop and so on .
本文利用 变分方法推出了矩形管道中完全发展段层流流动的速度，继而讨论了矩形管道中的 流量、沿程阻力系数和压力损失等。
Optimized structure hydraulic radial piston pump valve orifice system response characteristics to improve reduce the amount of leakage the volumetric efficiency increases pump output flow rate increases and the output traffic flow pulsation attenuation .
优化后的参数，水压径向柱塞泵阀配流系统的响应特性提高，泄露量减少， 容积效率增大，泵的输出 流量增大，且输出流量的流量脉动得到了衰减。
The results of orthogonal experiment shows that the effect of the volumetric flow rate of exhausted smoke is the most notable ;
实验表明：排烟 量 大小，排烟口数量和 火源 释 热 速率对烟气层高度的影响特别显著；
This dimensionless parameter ? is the ratio between nominal volumetric flow rate and real volumetric flow rate .
这个量纲一参数ε是标定的 容量 流率和实际容量流率之比。
Purpose : To find the relation between the signal intensity of MR and the flow velocity under steady flow condition in order to develop a suitable protocol for using this method to measure volumetric flow rate in the transverse sinus system .
目的探讨稳定流动状态下磁共振信号强度与液体流速关系，为横窦 血 流量测定提供适当方法。
Method for solving low volumetric flow rate caused by oil centrifugal force in gear pump
解决因油液离心力造成齿轮泵 容积 效率低的方法
Moreover research results also showed that core skin melt and holistic die swell increased with increasing skin melt viscosity but decreased with increasing skin melt inlet volumetric flow rate .
研究还表明芯、壳层熔体及口模整体的离模膨胀随着壳层熔体黏度的增大而增加，而随着壳层熔体进口 流量的增大而减小。
The oil-entry trough is simple in structure as well as easy in manufacturing it supplies a new approach to improve low volumetric flow rate of outer-engaged gear pump .
该进油槽结构简单，制造容易。可为解决外啮合齿轮泵 容积 效率低提供一条新的途径。
The paste relative velocity volumetric flow rate and screw convey efficiency has been numerical simulated and analyzed with Matlab in terms of a De-airing Pug Mill and paste parameters . The simulation results conformed with the actual production situation .
结合实际机型和泥料的流变参数，对 泥料的相对速度、 流量、绞刀输送效率进行了数值仿真和分析研究，结果和实际生产情况相一致；
A Method of Calculating the Volumetric Flow Rate for Screw Refrigerating Compressor
螺杆式压缩机 容积 效率计算方法的探讨
New Design for Improving Volumetric Flow Rate of Outer-engaged Gear Pump
提高外啮合齿轮泵 容积 效率的创新设计
This method of rectification is to be applied in the case of constant volumetric flow rate method of testing .
提出了一种新的专用于“等 体积 流量法”的 大气状态的修正方法。
美[ˌvɑljʊˈmɛtrɪk flo ret]英[vɔljuˈmetrik fləu reit]
容积流率