| 单词 | electric switch |
| 释义 | > as lemmaselectric switch electric switch n. a device for interrupting an electric circuit (e.g. to stop the current from reaching a device) or diverting a current to a different circuit; later spec. = light switch n. at light n.1 Compounds 3. ΚΠ 1867 Sci. Amer. 19 Oct. 242/3 Of a somewhat different character, is Hall's electric switch, so arranged that the continuous ringing of a bell gives evidence of the misplacement of the switch. 1889 Science 21 June 491/1 The hoist..can be run forwards or backwards with the greatest facility by the simple movement in one direction or another of an electric switch. 1930 Z. Fitzgerald in M. Brucolli Zelda Fitzgerald Coll. Writings (1991) 318 The stone corridor full of electric switches and signs about smoking. 1999 N.Y. Times 6 Dec. c5/3 Greenmountain.com plays middleman between wind farms and other clean sources of electricity and consumers who want to feel guilt-free when they flick an electric switch. < as lemmas |
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