扩散管（diffuser tube）是喷射泵中使动能转换为静压能的装置。
... diverging nozzle 扩张型喷嘴；扩张管 diverging tube 扩散管，锥形管 diversion 转换，换向，变换；变更；分水，分水渠，截水渠 ...
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Thus, the more attention should be paid on the design of diffuser for the liquid with high viscosity.
因此粘度较高时扩散管的设计要留意。
参考来源 - 离心油泵蜗壳内部三维粘性流体流动·2,447,543篇论文数据，部分数据来源于NoteExpress
本文建立了被动式扩散管采集室内空气中甲醛的方法。
A sampling method of passive diffusion tube for collecting formaldehyde in indoor air was established.
应用排气动力效应通过改善扩散管结构，可使整机性能显著提高。
Use of exhaust dynamic efficiency and improvement of the diffusion pipe structure are conductive to lifting the engine performance.
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。
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.
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