生活垃圾中存在着大量可回收利用的资源，若能恰当回收并加以利用会取得惊人的经济效益和很好的环境效益。
In life garbage exists are massive may recycle the use the resources, if can appropriately recycle and performs use can obtain the astonishing economic efficiency and very good environment benefit.
对硫铁矿烧渣进行综合利用既可回收资源，又可减少烧渣对环境的污染。
The comprehensive utilization can not only reclaim the resources but also reduce pollution on environment.
工厂化预制的钢材、清洁的施工现场、钢材无限次可回收利用，都是对地球资源和环境的保护。
Factory prefabricating steel, clean the construction site, steel unlimited recyclable use, is on the earth's resources and environmental protection.
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