Under the mean-field approximation, the free-energy functional of binary mixtures of star-like polymers is derived.

在平均场近似下求得了星型高分子共混体系的混合自由能及其相分离动力学方程。

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Things like steel and polymers, or plastics, and ceramics, and of course computers which has progressed remarkably due to the work of engineers in your lifetime, until now you can carry around a cell phone, which would have been unthinkable even 30 years ago.

包括钢铁,聚合物,塑料,陶瓷,当然,计算机这个在你们的有生之年,已经取得令人瞩目的进展的发明,也得归功于工程师的工作,现在你们的手机能随身携带,而这在三十年前是不可想象的

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The polymers can be used in just about any form of product from hydrogels and solutions to coatings for things like hospital equipment and even replacement joints (infections from contaminated hip, knee, and other joint replacements have been on the rise recently).

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