- gravel filter
- 砾石过滤器
English-Chinese construction dictionary (英汉建筑大词典). 2013.
gravel filter
Look at other dictionaries:
Filter — Fil ter, n. [F. filtre, the same word as feutre felt, LL. filtrum, feltrum, felt, fulled wool, this being used for straining liquors. See {Feuter}.] Any porous substance, as cloth, paper, sand, or charcoal, through which water or other liquid may … The Collaborative International Dictionary of English
Filter bed — Filter Fil ter, n. [F. filtre, the same word as feutre felt, LL. filtrum, feltrum, felt, fulled wool, this being used for straining liquors. See {Feuter}.] Any porous substance, as cloth, paper, sand, or charcoal, through which water or other… … The Collaborative International Dictionary of English
Filter gallery — Filter Fil ter, n. [F. filtre, the same word as feutre felt, LL. filtrum, feltrum, felt, fulled wool, this being used for straining liquors. See {Feuter}.] Any porous substance, as cloth, paper, sand, or charcoal, through which water or other… … The Collaborative International Dictionary of English
under-gravel filter — an aquarium filter providing both mechanical and biological filtration. It consists of a perforated plate placed on the bottom of the aquarium and then covered in gravel. Water is pulled through the gravel, under the plate, and up through lift… … Dictionary of ichthyology
filter bed — n. a tank, covered trench, etc. with a sand or gravel bottom, used to filter water, sewage, etc … English World dictionary
Filter (aquarium) — Aquarium filters are critical components of both freshwater and marine aquaria.cite book |last=Riehl |first=Rüdiger. Editor. |coauthors=Baensch, HA |title=Aquarium Atlas |year=1996. 5th Edn. |publisher=Tetra Press |location=Germany |isbn=3 88244… … Wikipedia
filter bed — noun filter consisting of a layer of sand or gravel for filtering water • Hypernyms: ↑filter … Useful english dictionary
filter bed — /ˈfɪltə bɛd/ (say filtuh bed) noun a layer of sand, gravel, charcoal, etc., in a pond, tank, or container, which serves to filter impurities out of the water which flows through it …
filter bed — noun Date: circa 1874 a sand or gravel bed for filtering water or sewage … New Collegiate Dictionary
filter bed — noun a tank or pond containing a layer of sand or gravel, used for filtering large quantities of liquid … English new terms dictionary
Trickling filter — A trickling filter consists of a fixed bed of rocks, gravel, slag, polyurethane foam, sphagnum peat moss, or plastic media over which sewage or other wastewater flows downward and causes a layer or film of microbial slime to grow, covering the… … Wikipedia
