出典:Wiktionary
abrasive (comparative more abrasive, superlative most abrasive)
出典:Wikipedia
出典:『Wikipedia』 (2011/02/04 09:36 UTC 版)
An abrasive is a material, often a mineral, that is used to shape or finish a workpiece through rubbing which leads to part of the workpiece being worn away. While finishing a material often means polishing it to gain a smooth, reflective surface it can also involve roughening as in satin, matte or beaded finishes.
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