soft laser

例句：

1. 1. The soft laser beam was shiningthrough the window.
   那束柔和的激光光束透过窗户。
2. 2. The soft laser was used tocut through the thick material.
   那束柔和的激光被用来切割厚厚的材料。
3. 3. The softlaser was used as a tool for precisionwork.
   那束柔和的激光被用作精密工作的工具。