| 单词 | amperehour |
| 释义 | > as lemmasampere-hour ampere-hour n. the quantity of electric charge equal to the charge carried by a current of one ampere during one hour, equal to 3600 coulombs of electric charge; symbol Ah.Ampere-hours are frequently used to measure the capacity of batteries. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > electric current > [noun] > unit of measurement > timed quantity ampere-hour1883 1883 Jrnl. Soc. Arts 16 Apr. 500/1 The ampère-hour is another way of saying 3,600 coulombs of quantity of electricity supplied. 1958 Pop. Sci. Feb. 176/1 Since a 12-volt battery has only about half the ampere-hour reserve, won't it quit sooner than a six-volt? 2014 K. Pickerill Today's Technician (ed. 6) 104 The battery is rated at 5 × 20 = 100 ampere-hours. ampere-hour e. Used as the second element, representing ‘for one hour’, in the names of some units of measurement, as ampere-hour, horsepower-hour, kilowatt-hour, man-hour (see under the first element). < as lemmas |
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