[电]?常闭按钮开关
...lly closed interlock ==> 常闭合接点,常闭联锁装置,休止辅助触头 normally closed push button switch ==> 常闭按钮开关 normally closed valve ==> 常闭阀 ..
?常闭铵钮开关
... normally closed push button switch 常闭按钮开关 normally closed push button switch 常闭铵钮开关 normally closed valve 常闭阀 ...
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