By dividing the environmental protection process into three periods, this thesis mainly researched the environmental regulation structure and its dynamical mechanism to change in certain period.
本文通过对迄今我国环境管制结构三个时期的划分，主要研究了特定时期我国的环境管制结构及其变迁的动力机制。
KORUS includes significant improvements on intellectual property, fair labor practices, environmental protection and regulatory due process.
《韩国与美国自由贸易协定》涵盖了在知识产权、公正对待劳工、环保及正当监管程序上的明显改进。
As a green environmental protection material, no harmful substances are produced in the process of production and use.
作为一款绿色环保的材料，在生产和使用过程中都没有有害物质的产生。
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