“valve-seat insert”的概念、定义、翻译、参考文献-科学参考

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单词	valve-seat insert
释义	valve-seat insert 气门座镶圈
随便看	double herringbone double heterojunction diode double heterojunction laser double-heterostructure double-heterostructure injection laser double high rolling mill double-hinged arch double hinged arm double hinged swivel double hinged swivel arm double hinged swivel wall drilling machine double hole type nozzle double hollow bit tongs double-hook double Hooke's joint double horizontal milling machine double-horn radiator double-housing planer double-hulled double-humped resonance double-humped wave double-hump effect double-hung doublehung window double-hung window