outer三相: three-phase; triphase电路: circuit; electric circuit; e ...的: 4次方是 The fourth power of 2 i ...火线: battle line; firing line三相电路: three phase circuit; threephase circuit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:三相电路的火线,即可在微信中查询翻译