The progress of petrochemical "three agents"(catalyst, additive and process assistant) is summarized, the industrial application results of some of the products are described, and their major research trend is summarized.
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Conclusion: Three agents can improve significantly in climacteric symptoms, are beneficial to lipoproteins metabolism and restrain bone loss in postmenopausal women.
结论:三种制剂均能显著改善绝经期症状,有利血脂代谢和抑制骨丢失。
To reduce viscosity of raw starch size and enhance the adhesion ability to pure cotton yarn, starch reducing viscosity agent SPU was developed by three agents and suitable ratio.
为降低原淀粉浆液的粘度、提高淀粉浆液对纯棉纱的粘附力,利用三种助剂的协同作用,选用适当的配比研制开发了淀粉降粘剂SPU。
The optimization of the formulations of "three agents" has solved the practical problem of high cost in polystyrene production and improved the economic performance in enterprises.
通过对三剂配方的优化,解决了聚苯乙烯生产成本高的实际问题,提高了企业的经济效益。
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