Difference between revisions of "Pumice"
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Latest revision as of 23:52, 20 February 2006
정의
- 미세하게 분리된 화산암, 가루 도는 고체형으로 물체의 표면을 부드럽게 하거나 광을 내기 위해 사용함.
- This page was last edited on 20 February 2006, at 23:52.
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