慢滤 meaning in Chinese

slow filtration

Fast filtration also performed better than slow filtration at purification
对于浊度的去除，快滤法亦较慢滤法为佳。
The biggest difference between the slow and rapid filtration methods was in their speed
快滤法与慢滤法最主要的差别在于过滤的速率。
This study tries to use upflow rough filtration as the pretreatment for slow sand filtration
摘要尝试采用上向流粗滤，作为慢滤池的预处理。