normally closed interlock
... normally closed contact 常闭接点 normally closed interlock 常闭合接点 normally open 正常断开的 ...
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... rest bend ==> 托座弯头,直角弯管接头 rest contact ==> 常闭合接点 rest cure ==> 静卧疗法,静卧疗法,休息疗法 ...
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