有一个真空泵把燃烧的产物推进管子，在管道行程的末端外面使这些产物彻底烧尽。
A vacuum pump pulled the products of combustion through the pipe and exhausted them outside at the end of the run.
一真空泵把燃烧的产物推进管子，在管道行程的末端将其释放掉。
A vacuum pump pulled the products of combustion through the pipe and exhausted them outside at the end of the run.
本文主要介绍隔膜泵机组技术参数的合理匹配以及隔膜行程控制系统设计分析。
Here is dealt mainly with rationally matching all the tech parameters of a diaphragm pumping unit and analyzing the design of its stroke control system.
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