| 释义 |
jackhammer美 ['dʒæk.hæmər] 英 ['dʒæk.hæmə(r)] 1. | 风钻；气动凿岩机a large powerful tool, worked by air pressure, used especially for breaking up road surfaces |
n. | 1. a handheld power tool, usually powered by compressed air and used for splitting or drilling rock, or for breaking up paved areas 2. a large noisy piece of equipment that you hold in both hands and use for breaking the surface of roads |
|