英语词汇well casing是什么意思，well casing的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典

单词	well casing
释义	well casing　套筒
随便看	locking portion locking press button locking protocol locking pulse locking pushbutton locking range locking relay locking ring locking ring mount locking scheme locking segment locking shift character locking spring locking spring screw locking stirrup locking stone locking strip locking stud locking surface locking switch locking table locking tappet locking thread form locking time locking tooth

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