Flint papers: A base paper coated one side with a colour and afterwards hard burnished or flint glazed to produce a high gloss, water-proof surface.

蜡光纸：在基纸一面，图上颜色涂料，然后用燧石打磨成有光泽、防水的纸。

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This paper discusses the performance and application of natural abrasive such as diamond, corundum, garnet, quartz, flint, pumice, diatomite, hematite and perlite.

本文介绍了天然金刚石、天然刚玉、石榴石、石英、燧石、浮岩、硅藻土、赤铁矿、珍珠岩等天然磨料的性能特点和其应用。

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