While pulling out the drill, crossbeams (metal structures on which insulators and conductors are mounted) are attached to a new support.

当拉出钻头时，横梁(上面缠有绝缘体和导体的金属结构)将它架起，形成一个新的支架。

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A common system is a drill unit that can be either vertically or axially mounted.

常用的是一个钻加工设备，既可以垂直安装也可以轴向安装。

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Hand crank can be mounted on either side of the drill stand.

手动曲柄可安装在钻台的任何一侧。

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He made the extraordinarily daring decision to incorporate in this sculpture a real mechanical drill, mounted on a tripod.

WSJ: Masterpiece: Jacob Epstein's Prophesy