arcing chamber灭: go out弧: arc bow腔: cavity; chamber灭弧腔 火花放电室 火花室 火花熄灭室: sparkchamber灭弧: arc extinction; arc extinguishing; arc suppressing; arc-suppression; blowout; extinction of arc; quenching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:灭弧腔,即可在微信中查询翻译