悬浮粒子的监测系统应当考虑采样管的长度和弯管的半径对测试结果的影响。

Where airborne particle monitoring systems are used, the length of tubing and the radii of any bends in the tubing must be considered in the context of the effect on test result.

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通过三类弯管形式压损试验，发现了短半径弯头在一个较大料气输送比范围内均产生最小压损；

By means of the pressure loss in three kinds of bend configuration. it is found out that the short radius elbows appear to yield the lowest pressure loss in a wide range of mass over air ratio.

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根据弯管压损理论选择设计了短半径弯管，并对其进行了相关试验。

Based on the elbow press loss theory, a short radius elbow was chosen and designed and experiments were made using it.

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