2 sentences

1. 他在组织里的代号是‘影子’。

   tā zài zǔ​zhī lǐ de dài​hào shì‘yǐng​zi’.

   His code name in the organization is 'Shadow'.

   Source: Dong Chinese Dictionary

2. 这个实验室研发的新型机器代号为阿尔法。

   zhè gè shí​yàn​shì yán​fā de xīn​xíng jī​qì dài​hào wéi ā'ěr​fǎ.

   The new machine developed by this laboratory is codenamed Alpha.

   Source: Dong Chinese Dictionary