filter bed
短语滤床 [机] 滤层
发音
UK
/ˈfɪltə bɛd/
其它
US
/ˈfɪltɚ ˌbɛd/
词形变化
filter beds
复数
filter beds
别名
filterbed
释义与例句
n.
-
1.
A layer of gravel, sand, or other material through which liquid is passed in order to remove impurities; also, a pond or tank containing such a layer.