Traffic congestion pricing defines the property of city road and gives a guarantee to configuring city road effectively and a good thinking way to alleviating the more and mor…
交通拥挤收费使城市道路这种稀缺资源的产权得到了确定，为市场有效地配置这种资源提供了保障，也为解决日益严重的交通拥挤问题提供了一个很好的思路。
The permittivity of polymer was more important to actuation performance and high permittivity could improve strain mor...
聚合物相的介电常数对驱动应变影响最大，采用高介电常数的聚合物相可以使其驱动应变明显提高。
The permittivity of polymer was more important to actuation performance and high permittivity could improve strain mor...
聚合物相的介电常数对驱动应变影响最大，采用高介电常数的聚合物相可以使其驱动应变明显提高。
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