膜技术由一系列的处理程序组成，其中包含反渗透，纳滤和超滤。
Membrane technologies consist of a group of treatment processes which include reverse osmosis, nanofiltration and ultrafiltration.
纳滤技术是一种介于超滤和反渗透之间的新型分离技术。
Nanofiltration is a new separation technique located between reverse osmosis and ultrafiltration.
纳滤是介于反渗透和超滤之间的一种膜分离技术，是国内外研究的热点。
Nanofiltration is a kind of pressure-driven membrane-separation technique similar to reverse osmosis filtration and ultrafiltration. It has become a hot topic of researches all over the world.
纳滤是介于反渗透和超滤之间的一种膜分离技术，是国内外研究的热点。
Nanofiltration is a kind of pressure-driven membrane-separation technique similar to reverse osmosis filtration and ultrafiltration. It has become a hot topic of researches all over the world.
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