reciprocating compressor短语¹¹⁴⁴⁶⁷⁺⁴ 基本例句 活塞压气机 The vibration signals of reciprocating compressor are basically non- balanced from its configuration and work principle, such as the vibration signals of air- valve, crosshead and piston. 由压缩机的结构和工作原理可知，压缩机的振动信号基本上都是非平稳信号，如气阀，十字头、活塞等振动信号。 cnki