The depth of the drilled hole can be simply plotted according to the thread's depth.

在装配图中，钻孔深度可按螺纹深度简化画出。

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Thanks to the soft sleeve material, anchorage is achieved by the flow of sleeve material into the surface roughness of the drilled hole.

由于套筒材料相对为软性，套筒材料被压入攻丝工件的粗糙表面。

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The errors are mainly produced by the plastic deformation around the drilled hole, which may be reduced by the method introduced in this paper.

产生这种误差的原因主要是由小孔边缘发生塑性变形、超出弹性范围所致。采用了一种改进方法对焊接残余应力重新测试，使误差大为减小。

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Cementing fills and seals the annulus between the well casing and the drilled hole.

FORBES: The Fracking Solution Is A Good Cement Job

Curiosity drilled a hole in Mars to collect a sample of its surface, which is the first time any rover has drilled such a hole on the Red Planet.

FORBES: Curiosity Drills A Hole On Mars

Under anesthesia, an incision is made in the scalp, a hole is drilled in the skull, and the device is placed on the surface of the brain.

WSJ: Bionic Brains and Beyond