| 单词 | watt-hour |
| 释义 | > as lemmaswatt-hour watt-hour n. a unit of energy equal to that produced in one hour by a power of one watt (equal to 3600 joules); symbol Wh.Cf. kilowatt-hour n. at kilowatt n. Compounds. 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 1883 Telegr. Jrnl. & Electr. Rev. 24 Feb. 166/1 If you are regarding the measure as 1,000 watt hours, it is not the same as 1,000 watts. 1907 E. Wilson & F. Lydall Electr. Traction I. 379 This can be converted into watt hours per ton mile thus. 2009 Daily Tel. 13 Jan. 13/2 A study has found that on average the wind turbines generate only 214 watt hours a day, less than five per cent of a household's daily electricity needs. < as lemmas |
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