grinding liquid

例句：

1. 1. Themachine uses grinding liquid to remove the rustfrom the metal parts.
   这台机器使用研磨液来去除金属部件上的锈。
2. 2. Theengineer used a grinding liquid to smooth thesurface of the workpiece.
   工程师使用一种研磨液来平滑工件的表面。
3. 3. The grinding liquidwas carefully mixed with water before being appliedto the surface.
   研磨液在使用前被小心地与水混合。