a unit of heat; cf. British thermal unit n. at British, adj. n.compounds 2.
| 单词 | θ76248 |
| 释义 | the world > matter > physics > electromagnetic radiation > heat > [noun] > unit of heat (12) thermal unit1853 a unit of heat; cf. British thermal unit n. at British, adj. n.compounds 2. calorie1863 A unit of heat or energy based on the specific heat of water; esp. (a) The amount of heat required to raise the temperature of 1 kilogramme (= 1… British thermal unit1865 the amount of heat needed to raise the temperature of one pound of water by one degree Fahrenheit, equivalent to approx. 1055 joules; abbreviation Btu… joule1882 An electrical unit, being the amount of work done (or of heat generated) by a current of one ampère acting for one second against a resistance of… large calorie1884 = calorie, n. (a); contrasted with small calorie. therm1888 A proposed unit of heat: the quantity of heat required to raise the temperature of one gramme of water at its maximum density one degree… kilogram calorie1892 a unit of heat or energy equal to the amount of heat required to raises the temperature of a kilogram of water at one atmosphere of pressure by one… B.T.U.- British thermal unit. Subcategories:— of specific amount (4) |
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