| 释义 |
filter bed
filter bedn. A layer of sand or gravel on the bottom of a reservoir or tank, used to filter water or sewage.filter bed n 1. (Civil Engineering) a layer of sand or gravel in a tank or reservoir through which a liquid is passed so as to purify it. Compare bacteria bed 2. (Chemistry) any layer of material through which a liquid is passed so as to filter it fil′ter bed`
n. a pond or tank having a false bottom covered with sand and serving to filter river or pond waters. [1870–75] Thesaurus| Noun | 1. | filter bed - filter consisting of a layer of sand or gravel for filtering waterfilter - device that removes something from whatever passes through it |
filter bed
filter bed[′fil·tər ‚bed] (civil engineering) A fill of pervious soil that provides a site for a septic field. (engineering) A contact bed used for filtering purposes. filter bedA bed of gravel, sand, or the like used to filter water or sewage; also see sand filter.filter bed
Words related to filter bednoun filter consisting of a layer of sand or gravel for filtering waterRelated Words |