| 单词 | second-foot |
| 释义 | > as lemmassecond-foot second-foot n. a unit of the rate of flow of water, equal to one cubic foot per second. ΘΚΠ the world > matter > liquid > liquid flow > action or process of flowing > [noun] > unit of water flow measurement water-inch1847 inch1858 miner's inch1865 second-foot1898 1898 U.S. Dept. Agric. Yearbk. 1897 640 Where water is abundant, the duty has been known to be as low as 50 acres..to the second-foot. 1914 H. Ries & T. L. Watson Engin. Geol. v. 250 The height of the black lines illustrates the relative quantity of water expressed in cubic feet per second, or second feet, occurring throughout the year. 1928 Manch. Guardian Weekly 31 Aug. 178/3 The assumption is that the main river, suitably fortified with levees, can carry rather less than 2,000,000 cubic feet of water per second (or 2,000,000 second feet as it is briefly described). < as lemmas |
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