Introducing reverse logistics to logistics management not only saves the cost of enterprises, but also reduces the pollution degree to the environment.
在煤矿物流中引入逆向物流管理，不但可以节约企业的成本，而且可以减少对环境的污染程度。
This will lessen the degree of air pollution.
这可以减轻空气污染的程度。
Green packing requires reducing the cost of commodity packing and the pollution degree of environment caused by discard.
绿色包装既要降低商品包装的成本，又要降低包装废弃物对环境的污染程度。
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