写作技巧:城市污水经济用工

论文片段—economicfeaturesthoroughlyanalyzed,andfinallytoreuseofwastewaterregenerationprojecthowtocreatemoreeconomicbenefitputorwardcountermeasures.Keywords:urbansewage;Regenerationreuse;Economiccharacteristics中图分类号：R123文献标识码：A论文编号地球的海洋面积占71%，总的城市污水再生回用工程的经济特点分析
摘要：在世界范围内水资源短缺可能会21世纪全球性危机。世界各国面对水资源的现实危机也都采取了各种措施争取二次回收利用，就以我国城市污水建筑小区的再生回用为案例，阐述其实施的必要性和具体方案，再对其回用工程的经济特点深入剖析，再对污水再生回用工程如何创造更大的经济效益对策大专毕业论文范文。
关键词：城市污水；再生回用；经济特点
Abstract: at present, the shortage of water resources throughout the world may be a 21 century global crisis. Facing the reality of the world water crisis has also adopted various measures for secondary recycling, this paper is to our country the construction of urban sewage reuse for regeneration case, this paper expounds the necessity of and concrete plan, again to the recycle project economic features thoroughly analyzed, and finally to reuse of wastewater regeneration project how to create more economic benefit puts forward countermeasures.
Keywords: urban sewage; Regeneration reuse; Economic characteristics
中图分类号： R123文献标识码：A 论文编号
地球的海洋面积占71%，总的水体积大约为14亿立方米，但只有2.5%是淡水，大以永久性冰或雪的形式封锁于南极洲和格陵兰岛，而可供人类利用的仅有20万立方米。-以上为可参考的写作提示