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水与人类的生命关系密切,水是构成生物体的基础,是人类生存之本。生物从外界环境中吸取养分就是通过水把各种营养物输入到机体的各个部分,又通过水把代谢物排出机体外,从而维持生命的活力,水成了人在漫长一生中的终身伴侣。工业生产、农业灌溉更是离不开水。随着世界各国经济的发展、生活水平的提高,以及科学技术和工农业的发展,地球上淡水资源日趋匮乏,世界各国强调要合理用水、节约用水、保护水资源、实施用水量的控制的呼声日益强烈。主要
Water and human life are closely related, water is the basis of the formation of living organisms, is the basis of human existence. Biology draws nutrients from the external environment through the water into the various nutrients into various parts of the body, but also through the water to the metabolites excreted from the body, so as to maintain the vitality of life, water has become a lifelong human lifelong companion. Industrial production, agricultural irrigation is inseparable from the water. With the economic development, standard of living of all the countries in the world, and the development of science, technology and industry and agriculture, the freshwater resources on the planet are increasingly scarce. All countries in the world have emphasized the need to rationally use water, conserve water resources, protect water resources, and control the use of water Increasingly strong. main