gallium arsenide laser

例句：

1. 1. The gallium arsenide laser is used for cuttingand welding metals.
   镓砷化激光器用于切割和焊接金属。
2. 2. This gallium arsenide laser canbe used for remote control of roboticarms.
   这种镓砷化激光器可以用于遥控机器人手臂。
3. 3. The gallium arsenide laser has been widely used inindustrial applications due to its high efficiency andprecision.
   由于其高效率和精确度，镓砷化激光器在工业应用中得到了广泛应用。