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单词 pull switch
释义

> as lemmas

pull switch
pull switch n.
Brit. /ˈpʊl swɪtʃ/
,
U.S. /ˈpʊl ˌswɪtʃ/
a switch operated by a pull-cord.
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the world > matter > physics > electromagnetic radiation > electricity > circuit > device to open or close circuit > [noun] > by mode of operation
time switch1884
pull switch1888
press switch1892
autoswitch1903
tumbler switch1907
snap switch1926
timer1934
1888 D. Salomons Managem. Accumulators (ed. 3) ii. ii. 97 The Browett pull switch is fixed near the cornice, and by pulling a cord, the light is put on; also turned off by a similar action.
1961 P. de Vomécourt Army of Amateurs xx. 236 Under the heap was a pound of plastic explosive, attached to it a ‘pull switch’... We tugged at the pull switch.
1971 D. Bagley Freedom Trap vi. 130 The light switch in the bathroom was operated..by a ceiling pull-switch from which a strong cord hung to a convenient hand level.
1993 Collins Compl. DIY Man. (new ed.) vii. 325/2 Use a 20amp ceiling-mounted pull-switch with a mechanical on/off indicator.
extracted from pull-comb. form
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更新时间:2025/3/20 2:33:44