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Refining

Revision as of 18:59, 20 February 2006 by Yslee (talk | contribs)
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1. 정련: 천연섬유에 함유되어있는 불필요한 것을 조작하는 것

2. 정제 : 원유를 가공. 정제하여 석유제품을 만드는 것을 말함 

3. 융련

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