通过20种油溶性表面活性剂的复配，筛选出适用于煤油基清洗剂的4种最佳表面活性剂。
The mixing of 20 kinds of oil-dissolved surfactant are studied and 4 kinds of high efficient surfactant in kerosene base cleaning agent are chosen.
通过20种油溶性表面活性剂的复配，筛选出适用于煤油基清洗剂的4种最佳表面活性剂。
The mixing of 20 kinds of oil-dissolved surfactant are studied and 4 kinds of high efficient surfactant in kerosene base cleaning agent are chosen.
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