前言近年来,由于水荒,人们把水资源看成是“取之不尽、用之不竭”的观念已经改变了。但是,由于社会主义建设事业一日千里地向前发展,人们对水资源的需求正以前所未有的速度不断加大。特别是在一些水资源贫乏的大城市,水资源不足已经成为制约生产发展、影响人们生活的重大因素。怎样对待这一现实呢?是把眼晴只盯在开辟新水源 Foreword In recent years, due to water scarcity, people have seen the concept of water as “inexhaustible” inexhaustible has changed. However, as the cause of socialist construction moves forward rapidly, the demand for water resources is growing at an unprecedented rate. Especially in some mega-cities where water resources are poor, inadequate water resources have become a major factor that restricts the development of production and affects people’s lives. How to deal with this reality? Is to focus on the eyes open up a new source of water