认为余隙间隙对活塞式压缩机排气量的影响最大，并介绍了余隙间隙的测量及调整方法。

This article believes that clearance space has the most important effect upon the ventilation of the piston compressor, and introduces the method of measuring and adjusting the clearance space.

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详细分析了活塞式压缩机顶开吸气阀排气量调节技术，并对新近研究工作做了介绍。

Air regulating for reciprocating compressor with pressing off inlet valve was analysed particularly and the late research on such a system was introduced.

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