arc chutearc extinguish chamberarc suppressing transformerarc-chutearc-extinquish chamberexplosion chamberquenching pot灭: go out弧: arc bow室: room灭弧室开关: quenching pot喷油灭弧室: oil blast explosion chamber下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:灭弧室,即可在微信中查询翻译