1.He’s a mere cipher in the company.

1.他在公司里是个无足轻重的小人物。

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

2."军队使用一种特殊密码,军事电讯因此密。"

3.The ciphers unlocked the whole letter.

3.解密码的方法使整封信的意说明。

4.I couldn't cipher out his motives.

4.我猜不出他的动机。

5.It’s a telegram in cipher.

5.这是密码电报。

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

6.采用“双频密码”方式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。