粗砂纸abrasive paper；emery paper；sand pa-per 是用以研磨金属、木材等表面，以使其光洁平滑。通常在原纸上胶着各种研磨砂粒而成。
... flint glass 燧石玻璃; 燧石玻璃; 火石玻璃 flint glass paper 粗砂纸 flint optical glass 火石光学玻璃 ...
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微粒梳棉机与针布梳棉机相似，不同的是其“针布”表面是粗的微粒，与粗砂纸相似。
Granular CARDS are similar to wire CARDS except that the "card clothing" is made of a rough granular surface somewhat similar to rough sandpaper.
基层处理：粘贴的聚苯板表面应尽量平整、坚固、清洁，必要时可用粗砂纸适当打磨。聚苯板间应压紧，可能出现的板缝须用保温材料或发泡胶填充。
Base treatment: clean and level the surface of EPS board substrate. Distance between EPS board should be filled with thermal insulation materials.
天然珍珠和人工养殖珍珠会有些许粗躁的感觉，如同细砂纸般，那是真珠质的天然触感。
Cultured and natural pearls will feel slightly rough , like fine sandpaper , because of the texture of natural nacre.
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