先闭后断换向开关接点
词语: 先闭后断换向开关接点
解释: make before break changeover switch contact
词典: 造纸专业汉英词典
先闭后断换向开关接点 相关解释
make before break changeover switch contact 〔名词〕先闭后断换向开关接点
make before break changeover switch contact 〔名词〕先闭后断换向开关接点
先闭后断换向开关接点 make before break changeover switch contact