Another common obstacle on vehicle Windows is the set of bolt caps that hold some Windows in place.

车辆窗户上的另一个常见障碍物是用来固定窗户的螺帽。

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This paper introduces the construction process, common problems and measures of rock roof-bolt.

本文简要介绍了岩石锚杆基础的施工工序、常见问题和对策等。

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Another astonishing performance from an incredible athlete, exactly 12 months since he became the fastest man in history, Usain Bolt has once again defied all common sense by lowering his world mark.

这是一个令人不可思议的运动员令人诧异的表现。在成为历史上最快的运动员之后12个月，他再次藐视了人们认为的他的记录会减慢的常识。

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