sand blasting

例句：

1. 1. The engineer used a machine to blastthe rock for construction.
   工程师使用一台机器来爆破岩石进行建设。
2. 2. Sandblasting is an effectivemethod for removing rust from metalsurfaces.
   风力喷砂是一种有效去除金属表面锈迹的方法。
3. 3. During sandblasting, the air pressure and flowrate are carefully controlled to avoid damaging thesurrounding structures.
   在风力喷砂过程中，空气压力和流速被严格控制以避免损坏周围的结构。