It’s crafted from natural cotton and recycled paper layer and it doesn’t use any chemical ink or adhesives that are tough to recycle.
它是由天然棉和可循环的纸质层精制而成，它没有使用任何难以回收再利用的化学油墨或是制剂。
The research of this paper may provide some new ways for the degradation and recycle use of plastics.
希望通过本论文的研究可以为普通塑料降解和回收利用提供一些更为有效，更加环保的新方法。
However, some economical problems facing recycle of reclaimed water have restricted the wide use of it. These problems are analysed and some measures are offered in the paper.
但中水回用中面临的一些经济性方面的问题，制约了中水的广泛应用，文章对这些问题进行分析，并提出解决措施。
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