单词 | abrasive |
释义 | abrasive [ǝ`brās·ǝv] GEOLOGY A small, hard, sharp-cornered rock fragment, used by natural agents in abrading rock material or land surfaces. Also known as abrasive ground. MATERIALS 1. A material used, usually as a grit sieved by a specified mesh but also as a solid shape or as a paste or slurry or air suspension, for grinding, honing, lapping, superfinishing, polishing, pressure blasting, or barrel tumbling. 2. A material sintered or formed into a solid mass such as a hone or a wheel disk, cone, or burr for grinding or polishing other materials. 3. Having qualities conducive to or derived from abrasion. Also known as abradant. |
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