transmitting operator发信: post a letter; send transmit ...操作员: console operator; operator通信操作系统: cos communications operating system通信操作指令: coi communications operating instructions; communications operating instructions操作员a: operator a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:发信操作员，即可在微信中查询翻译
