| 摘要 |
An exercise bicycle having an electronic meter and an alternating current generator, characterized by a rechargeable battery electrically connected with the alternating current generator via a circuit which will switch on rechargeable battery to supply electricity to the electronic meter when the alternating current generator does not provide sufficient power and will switch off the rechargeable battery and make the alternating current generator charge the rechargeable battery during the time when the alternating current generator produces sufficient working power for the electronic meters. <IMAGE>
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