配电真空断路器distribution: n. 1.分配,分发,配给;分配装置[系统];配给品;配 ...vacuum: n. (pl. vacuums, vac-ua ) 1. ...circuit breaker: 【电学】断路开关。 indoor vacuum circuit breaker: 户内真空断路器vacuum circuit breaker: 真空断路器下载手机词典可随时随地查词查翻译