| 单词 | to switch in |
| 释义 | > as lemmasto switch in (b) to switch in: to bring into a circuit by the operation of a switch; similarly to switch out.Cf. quot. 1891 at sense 8a(a). ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > circuit > connect [verb (transitive)] switch1881 to loop in1893 to cut in1910 to switch in1957 the world > matter > physics > electromagnetic radiation > electricity > circuit > short-circuit > establish short circuit [verb (transitive)] > bring into circuit to switch in1957 the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > electronic circuit > [verb (transitive)] > bring out of circuit by switching to switch out1957 1957 Pract. Wireless 33 734/1 A resistor could be switched in initially to limit the maximum possible current flowing to 10 mA. 1970 J. Earl How to choose Tuners & Amplifiers iii. 67 The loudness control filter..can be switched out allowing the volume control to work in the ordinary, uncompensated manner. 1978 SLR Camera Aug. 90/1 To switch in the automatic exposure control system all he need do is turn the shutter speed setting dial to the position marked ‘Auto’. < as lemmas |
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