- medium gravel
- medium [middle-sized] gravel
гравий средней крупности (6—20 мм)
Англо-русский строительный словарь. 2013.
Англо-русский строительный словарь. 2013.
gravel culture — noun : the growing of plants in an artificial medium using fine gravel to support the roots and supplying mineral nutrients in an aqueous solution … Useful english dictionary
interstitial medium — Spaces between grains of sand or fine gravel filled with water which contains phreatobia [25] … Lexicon of Cave and Karst Terminology
Sediment — Cobbles on a beach River Rhône flowing into Lake Geneva … Wikipedia
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Ouachita madtom — Conservation status Vulnerable (IUCN 2.3) Scientific classification Kingdom … Wikipedia
Hydroponics — (from the Greek words hydro (water) and ponos (labour) is a method of growing plants using mineral nutrient solutions, without soil. Terrestrial plants may be grown with their roots in the mineral nutrient solution only or in an inert medium,… … Wikipedia
Constructed wetland — Vertical Flow type of Constructed Wetlands A constructed wetland or wetpark is an artificial wetland, marsh or swamp created as a new or restored habitat for native and migratory wildlife, for anthropogenic discharge such as wastewater,… … Wikipedia
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
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Italy — /it l ee/, n. a republic in S Europe, comprising a peninsula S of the Alps, and Sicily, Sardinia, Elba, and other smaller islands: a kingdom 1870 1946. 57,534,088; 116,294 sq. mi. (301,200 sq. km). Cap.: Rome. Italian, Italia. * * * Italy… … Universalium
Crusher — For other uses, see Crusher (disambiguation). A crusher is a machine designed to reduce large rocks into smaller rocks, gravel, or rock dust. Crushers may be used to reduce the size, or change the form, of waste materials so they can be more… … Wikipedia