Hammer drill
01
冲击钻, 锤钻
a power drill with a hammering action for drilling into hard materials like concrete or masonry
语法信息
有生性状态
无生命
形态构成
复合词
可数
复数形式
hammer drills
例子
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。



























