我国沿海不少城市淡水资源异常紧缺,已是影响经济发展和人民生活的突出问题,并且日趋严重。海水是巨大的潜在资源,对它的研究开发利用,具有深远重大的经济、社会和环境意义,应尽早大力开发。自70年代以来,除海水淡化外,美、日、苏、法、意等许多国家,在研究海水直接应用于工农业生产方面,取得了一些成果。在工业方面,美国70年代初工业用水的 The anomalous shortage of freshwater resources in many cities along the coast of our country has become a prominent issue affecting economic development and people’s livelihood, and is becoming increasingly serious. Seawater is a huge potential resource. Its research, development and utilization have profound and far-reaching economic, social and environmental significance and should be vigorously developed as early as possible. Since the 1970s, in addition to seawater desalination, many countries such as the United States, Japan, the Soviet Union, France, Italy and other countries have made some achievements in studying the direct application of seawater to industrial and agricultural production. In industry, the United States industrial water in the early 70s