词语make-before-break contact
解释先接后离触点
make-before-break contact〔名词〕先合后断触点详细»
make-before-break contact先接后离接点详细»
make-before-break contact先接后断触点详细»
make-before-break contact〔名词〕先闭后开触点详细»
make-before-break contact〔名词〕先合后断角点详细»