A calibrated structure containing an adjustable orifice gate and a gate downstream to control a constant head differential across the orifice gate to divert and measure water from a main irrigation canal to a distributing canal.
CONSTANT HEAD ORIFICE TURNOUT (CANAL)
Meaning of CONSTANT HEAD ORIFICE TURNOUT (CANAL) in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012