The principles, processes, costs and (effects) of different disinfection techniques were summarized, especially a new method of slow sand filtration was introduced.
该文综述了国内外营养液消毒方法、原理、成本及应用效果，重点介绍了营养液消毒新技术-慢砂过滤。
The principles, processes, costs and (effects) of different disinfection techniques were summarized, especially a new method of slow sand filtration was introduced.
该文综述了国内外营养液消毒方法、原理、成本及应用效果，重点介绍了营养液消毒新技术-慢砂过滤。
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