Colour stability of coker gas oil has been improved by DMF extraction.

以二甲基亚砜为萃取溶剂,用溶剂萃取的方法提高焦化柴油的颜色安定性.

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Colour stability and suspension stability of strawberry juice were studied by using different anti - browning reagents.

摘要研究了不同抗氧化剂和亲水性胶体对草莓汁色泽和悬浮稳定性的影响.

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