Manning formula
短语词形变化
the Manning formula
释义与例句
name
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1.
An empirical formula estimating the average velocity of a liquid flowing in a conduit that does not completely enclose the liquid, i.e. an open channel.
词源
Named after the Irish engineer Robert Manning, who in 1890 redeveloped the original formulation by the French engineer Philippe Gauckler in 1867.
来源:wiktionary