| 释义 |
kilowatt Electr.|ˈkɪləwɒt|
[f. kilo- + watt.]
a. A thousand watts. Also attrib.
1884Engineering 17 Oct. 358/1 Professor Koyle thought the term kilowatt sufficiently explicit. 1892Barn. Smith & Hudson Arithm. for Schools 147 A Kilowatt is about 11/3 Horse-power. 1895–6Calendar Univ. Nebraska 196 Dynamos and motors from 25 Kilo-watts capacity down.
b. Comb. kilowatt-hour, a unit of energy equal to that produced in one hour by a power of one kilowatt, viz. 3·6 million joules.
1892Barn. Smith & Hudson Arithm. for Schools 147 This is a Kilowatt-hour and is equivalent to 3.6 Megajoules. 1905Daily Chron. 20 July 6/4 If he uses this 300 kilowatts for every minute he is working throughout the quarter, say..720 hours, he will use 300 × 720 kilowatt hours or ‘units’. 1951B. L. Goodlet Basic Electrotechnics i. 11 Electrical energy is sold commercially by the kilowatt-hour—1000 watts acting for 1 hour. 1965Owens & Sanborn Fund. Electr. vii. 366 If a lighting circuit uses 2000 watts for a period of one hour, the amount of electric energy consumed is 2 kilowatt-hours.
Hence ˈkilowattage, power expressed in kilowatts; also fig.
1935Daily Express 5 Apr. 8 A human dynamo of enormous kilowattage. 1971Sci. Amer. Sept. 212/1 (Advt.), There was a time when ‘the more, the better’ was a national attitude—when a surging yearly increase in kilowattage scored prestige points. |