用于打钻墙壁锚栓孔的电钻。

Drill for drilling wall anchor holes.

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本文采用可靠性技术，对某种栓孔间距进行了统计分析，从而为进一步研究栓孔间隙对连接件疲劳寿命的影响及对整机寿命的影响，提供了可靠的数据支持。

The statistic analysis of the space of bolt joints in this paper provides reliable data for the further study of the effect of the bolt-hole clearance on complete machines.

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该事故传感器具有至少一 个孔，该孔具有一在一作为固定装置的、弹性地构成的套筒中的栓。

The accident sensor has at least one hole which has a bolt in an elastically designed sleeve as the fastening means.

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