coded laser beam

例句：

1. 1.The laser beam was used to scan the document for errors.
   激光束被用来扫描文档以查找错误。
2. 2.The scientist used a coded laser beam to communicate with his team.
   科学家使用编码激光束与他的队伍进行通信。
3. 3.The laser beam was directed towards the target, causing it to explode.
   激光束被指向目标，导致它爆炸。