And when we work with film the scene ends up with imperfections such as softened edges, grain and some dirt due to dust and micro scratches.

当我们以电影的方式来处理场景的时候它始终是有瑕疵的，比如柔和的边界、颗粒以及一些污垢灰尘和小的瑕疵都是必须的。

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Also not qualifying as conservation is restoration where mechanical repairs are made such as filling holes, smoothing out scratches, and re-engraving of detail.

另外，钱币修补也不等同于钱币保养，其使用填补空洞、磨平划痕、重刻图案细节等机械性修补。

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Such grinding wheel has advantages as high grinding ability and high grinding efficiency, but they are easy to induce scratches on the ground surfaces and hence make bad surface machining quality.

这种高刚度的砂轮具有高的磨削能力和磨削效率，缺点是被磨工件表面易产生划痕，难以获得高的表面加工质量。

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The digital moving image, unblemished by scratches, hairs, burn holes or splice marks, may mesmerise techies, but purists such as Mr Spielberg believe that it robs movie-making of its artistry.

ECONOMIST: Face value