duplex simultaneous two way operation双工: duplex operation; duplex; du ...同时: at the same time; simultaneo ...双向操作: bidirectional operation双工同时双向: duplex simultaneous two-way同时双向操作: full duplex operation; simultaneous two-way 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:双工同时双向操作，即可在微信中查询翻译
