Long treasured as gemstones, pearls are valued for their translucence and lustre and for the delicate play of surface colour.

长期以来珍珠一直是一种极有价值的宝石，以其特有的半透明性和光泽以及表面柔和的色彩而倍受珍爱。 收藏。

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Optimum surface colour of fresh meat is usually short-lived.

肉品表面最佳颜色的时间都是很短暂的。

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The bionic design of surface layer can be classified as surface colour design, surface pattern design, surface material design and surface structure design.

表面层的仿生设计可分为表面色彩设计、表面图案设计、表面材料设计与表面结构设计。

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Down a narrow alley not far from the sparkling city centrepiece of Federation Square is dark, pokey Rutledge Lane, where a wild riot of colour spills over every surface and stretches storeys high.

BBC: The artful dodgers of Melbourne��s graffiti revolution

It will then be returned to its original golden brown colour and waxed so it has a protective weatherproof surface.

BBC: Henry Moore's House of Lords artwork restoration begins