sand-blasting gun

例句：

1. 1. This sand-blasting gun is very effective in removing rust from metal surfaces.
   这种喷砂枪在去除金属表面的锈迹方面非常有效。
2. 2. The engineer used the sand-blasting gun to clean the concrete surface before painting.
   工程师使用喷砂枪清理混凝土表面，以便进行涂装。
3. 3. During construction, sand-blasting guns are often used to remove loose materials and prepare the site for new work.
   施工期间，喷砂枪常被用来清除松散的物料，为新工作做好准备。