emergency valve

基本解释事故切断阀

网络释义

1)emergency valve,事故切断阀2)emergency switching-off,事故切断3)emergency operated valve,事故阀4)emergency valve,危急遮断阀,紧急止流阀,安全阀,紧急阀,事故阀5)accident switch,事故切换6)heavy breakdown in reeling thread,切断故障

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