gravity filtration

基本解释

According to the principle of composite graded into seepage Wells pits multilayer filter material, water filtration by gravity flow top-down.
按渗井原理级配的复合多层滤料过滤，水按重力自上而下流动。
www.jdol.com.cn
The easiest way to separate a liquid from a solid? Filtration! Learn how to effectively carry out gravity and vacuum filtrations in this video.
将液体从固体中分开来的最简易方法是什麽?过滤！在此影片中将学习如何有效的用重力过露及真空过滤来进行。
According to hydraulic head loss rate and filtration performance index FPI(ME) , the up - flow filtration is better than the gravity - flow filtration under the same conditions.
以过滤性能指数FPI（ME）及过滤水头损失增加率为判断依据，同等条件下，上向流过滤优于下向流过滤；