Quantitative relations of the pump flow rate versus the ratio of diffuser length to width, the ratio of diffuser thickness to width, fluid viscosity and backpressure were also given.

还给出微泵流量与扩散管长宽比、厚宽比、液体粘度和进出口反压差的定量关系。

A brass impeller surrounded by a cast iron diffuser, bracket, and case makes this pump as strong as those used by your grandfather!

泵的黄铜叶轮由铸铁扩散器、支架和外壳包围，使泵非常坚固耐用！

The numerical results indicate that 1) Phase differences in time of flow velocities and backflows occur across section of diffuser connecting to pump chamber;

数值结果表明：1）在微泵扩散管的过流截面上流速有时间相位差和回流现象。

Impeller and diffuser are important parts in the Axial-flow pump and the later is the important part to take back energy.

叶轮和导叶是轴流泵装置中的重要过流部件，而轴流泵后导叶(以下简称导叶)是泵内动能回收的主要部件。

The hydraulic section consists of the inlet and outlet nozzles, casing, flange, impeller, diffuser, pump shaft, pump bearing, thermal barrier and thermal barrier heat exchanger.

水力部件由以下组成：出入口管，壳体，法兰，叶轮，导叶，泵轴，泵轴承，热屏和热屏热交换器。

With its newly developed diffuser, the KSB Group has managed to lower by 20 dB the noise emission of a large pump produced 21 years ago in what was then the GDR.

通过最新研制的消声器，凯士比公司成功将21年前生产的一台噪音很大的大型机泵的声音降低了20分贝。

The results, which obtained by using radial diffuser, show that due to the high loss through the diffuser, the efficiency of the liquid hydrogen pump is lower.

采用径向导叶的液氢泵的试验结果表明，导叶损失大，导致液氢泵效率低。