emergency closing valve

同义词释义

1)emergency closing valve,应急阀，事故关闭阀2)emergency closing valve,事故关闭阀3)emergency shut valve,紧急关闭阀4)quick-closing emergency valve,应急速闭阀5)emergency valve closing system,应急阀门关闭系统6)emergency valve,危急遮断阀，紧急止流阀，安全阀，紧急阀，事故阀