- riffle bars
- мин.• хеликоидален прът
English-Bulgarian polytechnical dictionary . 2013.
riffle bars
Look at other dictionaries:
riffle — [rif′əl] n. [< ? or akin to Ger riffel, groove, furrow < EFris, akin to OE rifelung, wrinkle < IE base * rei , to tear > REAP ] ☆ 1. a) a shoal, reef, or shallow in a stream, producing a stretch of ruffled or choppy water b) a stretch … English World dictionary
riffle — /rif euhl/, v., riffled, riffling, n. v.t., v.i. 1. to turn hastily; flutter and shift: to riffle a stack of letters; to riffle through a book. 2. Cards. to shuffle by dividing the deck in two, raising the corners slightly, and allowing them to… … Universalium
river — river1 riverless, adj. riverlike, adj. /riv euhr/, n. 1. a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels. 2. a similar stream of something other than water: a… … Universalium
Channel types — A wide variety of river and stream channel types exist in limnology. All these can be divided into two groups by using the water flow gradient as either low gradient channels for streams or rivers with less than two percent (2%) flow gradient, or … Wikipedia
Meander — For other uses, see Meander (disambiguation). A hypothetical stream bed following a tilted valley. The maximum gradient is along the down valley axis represented by a hypothetical straight channel. Meanders develop, which lengthen the course of… … Wikipedia
Braid bar — Braid Bars, or mid channel bars, are landforms in a river that begin to form when the discharge is low and the river is forced to take the route of less resistance by means of flowing in locations of lowest elevation. Over time, the river begins… … Wikipedia
River delta — Nile River delta, as seen from Earth orbit. The Nile is an example of a wave dominated delta that has the classic Greek delta (Δ) shape after which river deltas were named. A delta is a landform that is formed at the mouth of a river where that… … Wikipedia
Oxbow lake — Songhua River, northeast China. Swirls and curves, showing paths the river once took, as well as oxbow lakes, are easily seen in this satellite photo. An oxbow lake is a U shaped body of water formed when a wide meander from the main stem of a… … Wikipedia
Noturus flavus — (Stonecat) Stonecat Noturus flavus Scientific classification Kingdom: Animalia … Wikipedia
Conasauga logperch — Conservation status Vulnerable (IUCN … Wikipedia
Course of the Rogue River (Oregon) — This article is about the course of the river in Southern Oregon. For the river in Polk County, Oregon, see Rogue River (South Yamhill River). Coordinates: 42°25′21″N 124°25′45″W / … Wikipedia
