At present, the molecular weight of polymer reduces by over 50% in the preparation of general purposed PAM powder in China.
在目前国内通用的聚丙烯酰胺干粉制备工艺中，聚合物分子量的降低率达50%以上。
TEACHTOOL is a Prototyping-based, user-oriented and general-purposed automatic courseware generation system, developed by computer Science Dept. of Jinan university.
TEACHTOOL 是暨南大学计算机科学系研制的，基于原型开发方法，面向用户的通用课件自动生成系统。
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