Filtration slow sand的意思|示意

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。

Biological activated carbon filtration and slow sand filtration are used to study the rural potable water treatment.

采用生物活性炭滤-砂慢滤工艺对农村饮水处理进行了试验研究。

The present paper aims to introduce a bio-slow sand filtration method for processing rural drinking water sources.

研究了适用于我国农村的小型分散式饮水处理技术——生物慢滤技术。