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单词 electronic clock
释义 electronic clock
[i´lek`trän·ik `kläk]
HOROLOGY
A clock that uses a ferrite rod and coil to pick up the electromagnetic field of 60-hertz power line wiring in a house; this 60-hertz voltage is amplified by a transistor amplifier and used to control a transistor oscillator that drives a tiny permanent-magnet synchronous clock motor; two mercury cells provide power for the transistors.
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