Hammer drill
01
冲击钻, 锤钻
a power drill with a hammering action for drilling into hard materials like concrete or masonry
例子
The contractor used a hammer drill to make holes in the concrete wall for the new wiring.
承包商使用冲击钻在混凝土墙上为新布线钻孔。
When drilling into stone, a hammer drill provides the extra force needed to break through the tough surface.
在石头中钻孔时，冲击钻提供了突破坚硬表面所需的额外力量。
