Cold work: 'Buddy teams' dig out huge chunks of ice using a hand-powered drill to create dive holes in the White Sea, Russia.
钻冰洞：俄罗斯白海，“巴迪队”用手动钻挖出大块的冰，钻出潜水洞。
The competition began. John Henry kissed his hammer and started working. At first, the steam-powered drill worked two times faster than he did.
比赛开始前，约翰。亨利亲吻了一下他的铁鎚并开始工作。
Core drill machines can be powered by electric hydraulic or air power sources.
核心动力的电动钻机器能、水力和空气动力来源。
Equipped with hydraulic holder and hand powered unscrewer, to untighen the drill rod easily.
附设液压夹持器，并配以手动御扣装置，使拆御钻杆更方便。
Equipped with hydraulic holder and hand powered unscrewer, to untighen the drill rod easily.
附设液压夹持器，并配以手动御扣装置，使拆御钻杆更方便。
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