He’s a mere cipher in the company.

他在公司里是个无足轻重小人物。

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

"军队使用一种特殊密,军事电讯因此得以保密。"

I couldn't cipher out his motives.

我猜出他动机。

The ciphers unlocked the whole letter.

密方法使整封信意义得到说明。

It’s a telegram in cipher.

这是密电报。

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

采用“双频密”方式决焊接电流远程调节及自动修正，较好地处理了多机相互干扰问题。