| 单词 | foot-pound |
| 释义 | > as lemmasfoot-pound foot-pound n. (a) a unit of energy equal to the energy required to raise a weight of one pound by a height of one foot (now chiefly U.S.); (b) a unit of torque or moment equal to the torque exerted by a force of one pound acting at a distance of one foot from the axis of rotation.In both cases,1 foot-pound is approx. 1.356 newton metres. 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 1847 J. R. & L. D. B. Gordon tr. J. Weisbach Princ. Mech. Machinery & Engin. I. ii. ii. 44 Instead of units of work, we say kilogrammetres, pounds-feet; and inversely, metrekilo. and feet-pounds[Ger. Fußpfund] according as the weight and distance are expressed in kilogrammes and metres, or in pounds and feet. 1857 Encycl. Brit. XIV. 404/2 The ordinary British unit of moment is a foot-pound; but it is to be remembered that this is a foot-pound of a different sort from the unit of energy and work. 1929 Pop. Sci. Monthly June 65/2 It is estimated that the improvement will save American housewives 20,800,000,000 foot-pounds of energy this year. 1991 Kiplinger's Personal Finance Oct. 108/2 The Ford Tempo and Mercury Topaz both have a 3-liter..engine that delivers 135 horsepower and 150 foot-pounds of torque. 2009 Sandusky (Ohio) Reg. 9 Apr. a3/1 At takeoff speeds, a collision with a 12-pound goose generates 10,000 foot-pounds of energy. < as lemmas |
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