The structure character of hyperbranched polymer, its unique solution and bulk property, and the main affect factors on the performance, were introduced.

介绍了超支化聚合物结构特征，独特的溶液和本体性能，以及影响这些性能的主要因素。

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"By designing the properties of the inclusions, as well as their shapes and density, you achieve in the bulk property something that may be unusual and not readily available in nature," Engheta said.

“通过设计掺杂物的性质，形状和密度，你可以获得一些，在整体性质上，在自然界中不同寻常而且难以得到的东西。”Engheta说。

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The bulk of losses today are from commercial-property and consumer loans.

如今的大多数亏损来自商业房产和消费贷款。

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In his State of the Union address, President Barack Obama presented his bold vision to transform our nation's education system, but when the bulk of dollars come from local property taxes, there isn't much the federal government can do.

CNN: STORY HIGHLIGHTS