Sedimentation basin overflow weir. A plate with V-notches along the top to assure a uniform flow rate and avoid short-circuiting.
LAUNDERING WEIR (LAWN-DER-ING WEER)
Meaning of LAUNDERING WEIR (LAWN-DER-ING WEER) in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012