词语主停气阀
解释main stop valve
main stop valve〔名词〕主停汽阀详细»
main stop valve〔名词〕主停气阀详细»
main stop valve〔名词〕主截止阀详细»
main stop valve主截止阀,主停汽阀详细»
main stop valve主截止阀主停汽阀主停止阀详细»
主停气阀main stop valve详细»