| 单词 | horsepowerhour |
| 释义 | > as lemmashorsepower-hour horsepower-hour n. a unit representing the work performed or energy consumed in working at the rate of one horsepower for one hour. ΘΚΠ the world > matter > physics > energy or power of doing work > [noun] > specific quantities or units of energy or work horsepower1806 foot-pound1847 foot-ton1860 kilogrammetre1866 erg1873 kilerg1873 indicated horsepower1881 metre-ton1881 joule1882 watt-hour1888 manpower1893 horsepower-hour1899 horse1904 1899 J. Perry Steam Engine xvi. 250 Units of Energy used Commercially. 1 horse-power hour = ..1,980,000 foot-pounds. 1906 Westm. Gaz. 28 June 2/1 An output of 36 cubic feet of oxygen per horse-power hour. 1949 G. P. Sutton Rocket Propulsion Elem. i. 18 The specific fuel consumption is based on the horsepower output, and its units are pounds of fuel per horsepower-hour. 1963 F. D. Jones & P. B. Schubert Engin. Encycl. (ed. 3) 662 1 horsepower-hour = 0·746 kilowatt-hour. horsepower-hour e. Used as the second element, representing ‘for one hour’, in the names of some units of measurement, as ampere-hour, horsepower-hour, kilowatt-hour, man-hour (see under the first element). < as lemmas |
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