make-before-break contact
先接后离接点
make-before-break contact【通信】
暂无补充释义。
相关词条
make-before-break switch
make-before-break contact【通信】
two-way make-before-break contact【电】
two-way make-before-break contact【电】
make-before-break contact【通信】
暂无补充释义。
make-before-break contact
make-before-break switch
make-before-break contact【通信】
two-way make-before-break contact【电】
two-way make-before-break contact【电】