Currently, in the nation-wide postal confidential communications bureau, the most of the confidential communications are totally dependent on manual operation.

目前，就全国范围内的邮政机要通信局来说，绝大部分的机要通信都完全依靠手工操作。

youdao

Currently, in the nation-wide postal confidential communications bureau, the most of the confidential communications are totally dependent on manual operation.

目前，就全国范围内的邮政机要通信局来说，绝大部分的机要通信都完全依靠手工操作。

youdao