a unit of heat; cf. British thermal unit n. at British, adj. n.compounds 2.
| 单词 | θ72678 |
| 释义 | the world > matter > properties of materials > temperature > heat > [noun] > measurement of heat > unit of thermal energy (6) 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… 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… Subcategories:— as applied to gas supplied (1) |
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