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pedalier a constant development peripheral
pedalier a constant development peripheral
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机译:不断发展的脚步
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摘要
The pedal drive for a bicycle has a crank (M) of curved profile to direct the applied force from the pedal mounting (X') towards a peripheral section following a set angle (MU) before engagement with the rotational axis (X). This causes a leverage on a point of a disc (D) which carries sprockets (C1-5).
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