Rotary hammer
01
旋转锤, 冲击钻
a powerful handheld tool primarily used for drilling into hard materials such as concrete, stone, or masonry, featuring a rotating drill bit and a hammering mechanism that delivers rapid impacts to aid in the drilling process
例子
The contractor used a rotary hammer to drill through the thick concrete wall.
承包商使用旋转锤钻穿了厚厚的混凝土墙。
When renovating the building, they relied on a rotary hammer to break up the old flooring.
在翻新大楼时，他们依靠电锤来打碎旧地板。
