rotary-percussive drill

例句：

1. 1. This rotary-percussive drill is very efficient in cutting through concrete.
   这种旋转式冲击钻在切割混凝土时非常高效。
2. 2.The engineer used a rotary-percussive drill to bore holes for the new piers.
   工程师使用旋转式冲击钻为新码头钻孔。
3. 3. The rotary-percussive drill was used to remove the old roof and install the new one.
   使用旋转式冲击钻来拆除旧屋顶并安装新屋顶。