If this surface was smooth (such as marble), it would completely change the image.

如果这个表面是光滑的(比如大理石)，那将完全改变这幅照片。

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Surface of metal was smooth without changes after polishing.

抛光的金属表面平坦，无结构改变。

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Surface of metal was smooth without changes after polishing.

抛光的金属表面平坦，无结构改变。

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