Transferable emission permit — a pollution control policy requiring each emitter of a pollutant to possess permits for the amount of pollution it releases.
可转让许可系统——污染物控制政策要求每个污染排放源拥有污染排放许可。
For studying characteristics of urban vehicular pollution so as to suggest the optimal control target for policy making, a mathematical optimizing model was developed.
为研究城市机动车污染特征，实现污染物排放的最优控制，提出研究排放控制目标的数学优化模型。
It is a significant sector to expedite working out the water pollution control planning for the East Route basin and strengthen researching on technical policy and implementing schemes.
加快编制东线工程沿线流域水污染控制规划、加强技术政策和实施方案的研究，是保证治污效果的重要环节。
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