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dan hua hai shui zao fu ren lei
Pages: 60
Year: Issue:  8
Journal: Knowledge is Power

Abstract:  今年五月以来,我国西南部干旱地区连降大雨,长达半年多的特大旱情终于结束了.如今,旱区人民开始亡羊补牢,村村修建蓄水设施,乡乡修建水利工程,积极寻找新水源,大力推广节水农业.其实,世界上很多地方都缺淡水,世界各国人民都在寻找新水源,很多国家正在向海洋要淡水.全球绝大部分的水分布在海洋中,如果能够使海水变淡,那么人类就有取之不尽的淡水了.海水真能淡化吗?能!
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