glass laser rod

例句：

1. 1. The laser rod is used to cut through thick materials.
   激光棒用于切割厚材料。
2. 2. The laser beam was focused on the target, illuminating it with a bright light.
   激光束聚焦在目标上，将其照亮。
3. 3. The laser rod was used to create an intricate pattern on the wall.
   激光棒被用来在墙上创造出复杂的图案。