| 释义 |
1 ?砂纸板 ... 砂纸板 sandpaper file 砂纸板 sandpaper pad 夹层材料 sandwich material ...
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Selected material, to sawn ivory films, shape file, and then polished with sandpaper 6 times, and then the surface of ivory black ink will be dry after. 选定材料后，要把象牙锯成片、锉成形，然后用砂纸打磨6遍，再用墨汁将象牙表面涂黑后晾干。 - 2
Millstone, sandpaper, nail file, granite surface, concrete walls and floors above all contains material, will be scratched surface of these materials. 磨石、砂纸、指甲锉、花岗石面、混凝土墙面及地面等均含有以上物质，会刮花这些材料的表面。 - 3
First of all, to deal with some spraying petrol, acetone for degreasing treatment with a file, fine sandpaper, oilstone will fatigue layer and oxide layer removed to expose the metal color. 首先应对喷涂部分用汽油、丙酮进行除油处理，用锉刀、细砂纸、油石将疲劳层和氧化层除掉，使其露出金属本色。
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