Finally, through comparing the reduction effect on total pollution load, the optimal ecological treatment system was put forward.

最后通过对比两种方案的去污效果，得到最优化的生态化处理系统。

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The specific research contents mainly include three parts: characteristics of urban runoff pollution, simulation of total pollution load, technology of ecological treatment.

具体的研究内容主要包括三大部分，分别是：城市径流污染特征研究、负荷总量模拟研究以及生态化处理技术研究。

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"We measure the ecological load an area can take and we offer licences only where were convinced there is a proper balance between effects of fish farming and the ability of local environment to absorb the effects of farming, " says Stewart Stevenson the Scottish Minister for Environment and Climate Change.

BBC: How can Scotland cope with China's salmon demands?