微分散射截面的变化主要依赖于相对介电常数实部、虚部数值较大的一方，并且随粒子取向角的增大而增大。

The variation of DSCS depends on the larger part between real part and imaginary part of dielectric coefficient. The DSCS and azimuth angle are in proportional relation.

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建设节约型城市，城市规划一方面要在配合循环经济兴起的同时，防止循环经济可能存在的虚热所带来的负面影响；

To build a resource-efficient city, urban planning should, on the one hand, prevent the negative influence of the circular economy while sup- porting its rise.

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虚部件设计有三方面的需求：第一、采用系统级设计语言进行功能描述。

There are three demands in designing a virtual component, include: first, we should describe the virtual component with system level design language.

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