Weir

A weir at the Thorp grist mill in Thorp, Washington, USA

19th century weir of porphyry stone on a creek in the Alps

A weir /ˈwɪər/ is a barrier across a river designed to alter its flow characteristics. In most cases, weirs take the form of obstructions smaller than most conventional dams, pooling water behind them while also allowing it to flow steadily over their tops. Weirs are commonly used to alter the flow of rivers to prevent flooding, measure discharge, and help render rivers navigable. Weirs are also used in the study of returning salmonids.

单词	Diversion weir
释义	Diversion weir 英语百科 Weir A weir /ˈwɪər/ is a barrier across a river designed to alter its flow characteristics. In most cases, weirs take the form of obstructions smaller than most conventional dams, pooling water behind them while also allowing it to flow steadily over their tops. Weirs are commonly used to alter the flow of rivers to prevent flooding, measure discharge, and help render rivers navigable. Weirs are also used in the study of returning salmonids.
随便看	Riddell ragwort的意思 riddels的意思 ridden的意思 ridden away的意思 ridden bitch的意思 ridden down的意思 ridden for a fall的意思 ridden hard and put away wet的意思 ridden hell for leather的意思 ridden herd on的意思 ridden high的意思 ridden horseback的意思 ridden off的意思 ridden on的意思 ridden out的意思 ridden over的意思 ridden per prejudice的意思 ridden roughshod over的意思 ridden shotgun的意思 ridden the beam的意思 ridden the fence的意思 ridden the goat的意思 ridden the gravy train的意思 ridden the rods的意思 ridden up的意思

Diversion weir

Weir