如何循环利用纸？
We can also recycle books and paper.
我们还可以回收书本和纸张。
We should recycle the waste paper.
我们应该回收这些废纸。
We should try to recycle all our waste paper.
我们应该把所有废纸回收再利用。
I think it's better to recycle waste paper instead of throwing it away.
我认为回收废纸取代扔掉它更好。
In this paper the recycle of polystyrene foamed plastic waste was studied.
本文对废旧聚苯乙烯泡沫塑料的再生利用进行了研究。
Mathematical model of recycle tubular flow with equal space time is pro-posed in this paper.
提出并解析了等空时双平推流循环流动的数学模型。
This paper introduce about the composition of cooling water recycle system.
介绍冷却循环水系统的组成。
This paper introduce about the composition of cooling water recycle system.
介绍冷却循环水系统的组成。
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