防腐油 preservative oil
- 褐煤油是从褐煤中得来的防腐油。
Lignite oil is creosote derived from lignite tar. - 锌盐和防腐油的混合物也已广泛地被采用。
Combinations of zinc salts and creosote have also been widely employed. - 它也用来起强化防腐油的杀菌作用。
It has also been used to fortify the fungicidal action of creosote.
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