The main Problems with designing the flexible shaft on a screw drill are strength check and interference calculation.

螺杆钻具挠性轴设计中的两个主要问题是强度校核和干涉量计算。

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This paper analyses the influence of excentric shaft connection on force case of drill tool, and discusses the causes of drill tool failure.

文中分析了使用偏轴接头对钻具各部分受力情况的影响及导致钻具失效的原因。

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The small metal shaft will be removed, and I ll drill a hole to accept the radar shafts.

小金属轴将被删除，我会钻一个孔，接受雷达轴。

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Officials said both efforts -- to drill a rescue shaft and widen a bore hole -- could be carried out concurrently.

CNN: Drilling to reach Chile miners yet to begin

This drill will be used, engineers say, for the so-called plan B, as a parallel attempt to a drill a rescue shaft down to the miners.

CNN: New drill arrives in Chile with great fanfare

The Plan B would drill at an 85 degree angle into an area of mine shaft that is used as a mechanical workshop.

CNN: New drill arrives in Chile with great fanfare