Since 20th century 90's, Affronting the flinty condition of rapid increasing of population, the drying up of resources, the destroying of the environment, it is a new model of the economic globalization to develop the circular economy. Circular economy follows 3R principles: reduce, reuse and recycle. By the look of flow and Material form, circular economy has a mode of“resource- product- resource recovery”; all the material and energy can be sustainable used in it, so the activity of economy brings ...
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