speech plus telegraph circuit话路: speech channel; speech path; ...插: stick in; insert报: report; declare; announce电路: circuit; electric circuit; e ...话路插报双工工作: speech plus duplex operation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:话路插报电路，即可在微信中查询翻译
