gas-injection laser

例句：

1. 1.The gas-injection laser is used to remove hardened stains from clothing.
   气体注入激光用于去除衣物上的顽固污渍。
2. 2.The gas-injection laser was the first to use a computer program for cutting fabric.
   气体注入激光是第一个使用计算机程序进行切割布料的。
3. 3. The gas-injection laser has revolutionized the way we cut and weld metal.
   气体注入激光已经彻底改变了我们切割和焊接金属的方式。