double-channel nitrogen laser

例句：

1. 1.This double-channel nitrogen laser is used for cutting and welding.
   这种双通道氮激光器用于切割和焊接。
2. 2.The engineers developed a new double-channel nitrogen laser that can cut through steel plates with ease.
   工程师们开发了一种新型的双通道氮激光器，可以轻松切割钢板。
3. 3.The double-channel nitrogen laser was used to create intricate designs on the metal surface.
   双通道氮激光器被用来在金属表面创造出复杂的设计。