Seawater can be changed into fresh water through seawater desalination technology, but it cannot be mass produced due to its high cost.

海水淡化技术能够将海水变为饮用淡水，但成本太昂贵，无法实现规模化。

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The reverse osmosis technology is one important part of the seawater desalination technology, and the determination of recovery rate is an important aspect of reverse osmosis system design.

反渗透技术是海水淡化技术的重要组成部分，其中水的回收率设计问题是反渗透系统设计的重要方面。

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New development of membrane technology in seawater desalination and multipurpose use is reviewed in this paper.

主要论述了膜技术在海水淡化和海水综合利用中的新进展。

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