He’s a mere cipher in the company.

他在公司里是个无足轻重的小人物。

The army uses a special cipher so that military messages are kept secret.

"军队使一种特殊密码,军事电讯因得以保密。"

I couldn't cipher out his motives.

我猜不出他的动机。

The ciphers unlocked the whole letter.

解密码的方法使整封信的意义得到说明。

It’s a telegram in cipher.

这是密码电。

Double-frequency cipher can solve the problem of multimachine mutual interference fairly good by handling the remote control and autocorrection of welding current.

“双频密码”方解决焊接电流的远程调节及自动修正，较好地处理了多机相互干扰问题。