jackhammer
['dʒæk.hæmə]
n. 手提钻
例句与用法：
A system or device for doing work, as an automobile or a jackhammer, together with its power source and auxiliary equipment.
机械系统用来工作的系统或装置，如汽车或手持式凿岩机，包括其动力源和辅助设备
详细释义：
n.
手提钻
jackhammer
['dʒæk.hæmə]
n. 手提钻
例句与用法：
A system or device for doing work, as an automobile or a jackhammer, together with its power source and auxiliary equipment.
机械系统用来工作的系统或装置，如汽车或手持式凿岩机，包括其动力源和辅助设备
详细释义：
n.
手提钻