automatic secure voice communications自动: voluntarily; of one's own ac ...保密: keep a secret density电话通信系统: telephone communication syst ...自动保密电话通信: automatic secure voice communication保密电话通信: secure voice communications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:自动保密电话通信系统，即可在微信中查询翻译
