ac power frequency track circuit交流: exchange; interflow; interch ...工: worker; workman; the working ...频: frequent轨道: track; pathway; rail; runway ...电路: circuit; electric circuit; e ...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:交流工频轨道电路，即可在微信中查询翻译
