The actualizing approach of the material cycle and non-material cycle of the recycle economy is put forward in this paper.
文章首次提出基于循环经济的循环由物质循环和非物质循环构成。
The predigestion life cycle assessment method (LCA) has been applied to investigate the environmental impact of recycle copper process from copper-slag.
本文运用简化生命周期评价的方法，对铜炉渣回收铜的过程进行了环境影响评价。
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