ceresin
复合物的混合物,这些混合物是通过用硫酸提纯臭橄榄石并通过骨黑过滤而形成的蜡状蛋糕而生成的烃 complex combination of hydrocarbons produced by the purification of ozocerite with sulfuric acid and filtration through bone black to form waxy cakes

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