单词 | hydraulic mean depth |
释义 | > as lemmashydraulic mean depth hydraulic mean depth n. a length equal to the cross-sectional area of the liquid in a channel or pipe divided by the length of the wetted perimeter. ΚΠ 1797 Encycl. Brit. XVIII. 891/1 Column 1..contains the hydraulic mean depths of any conduit in inches... The column is continued to 100 inches, which is fully equal to the hydraulic mean depth of any canal. 1829 Nat. Philos. (Libr. Useful Knowl.) I. vi. 5/2 Suppose the whole quantity of water to be spread on a horizontal surface, equal in extent to the bottom and sides of the river, when the height at which the water would so stand is called the hydraulic mean depth. 1930 Engineering 7 Feb. 180/1 By means of the following table, maximum scour can be calculated from calculated values of the hydraulic mean depth. < as lemmas |
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