Considering global water shortage and poor status of China＇s freshwater resources, seawater desalination is necessary and has good market prospects. Main thermal seawater desalination technologies are briefly introduced and analyzed. In addition, the present situation and future development of thermal desalination application are presented in the paper.%介绍了全球水资源的状况及我国淡水资源紧缺的现状，提出了海水淡化技术发展的必要’陛和其良好而广泛的市场前景，进而对主流热法海水淡化技术作了扼要的介绍、分析和比较，并展望其发展趋势。
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