Telephone communications which are protected against compromise through use of an approved ciphony system.
通过使用有效的密码电话系统,保护电话通信不被泄漏.
词典释义:
n.密码电话学
Telephone communications which are protected against compromise through use of an approved ciphony system.
通过使用有效的密码电话系统,保护电话通信不被泄漏.
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