本文从激光安全评价出发，介绍一种远距离激光束光斑测试方法。
To appreciate the laser safety, we introduce a beam spot measurement method of laser long distance irradiation.
光束发生器被安装在一个接地装置上，可以由一个人在原地操作，也可以进行远距离操作。
The beam emitter is located at a ground-based unit and operated by a person, who could control it from the same location or remotely from an entirely different place altogether.
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