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Rear light is integrated into bicycle or motor cycle safety helmet and uses the new generation of light emitting diodes and button batteries
Rear light is integrated into bicycle or motor cycle safety helmet and uses the new generation of light emitting diodes and button batteries
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机译：尾灯集成在自行车或摩托车安全头盔中，并使用新一代的发光二极管和纽扣电池
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摘要
The device is built into the rear of a bicycle or motor cycle safety helmet and uses the new generation of light emitting diodes and button batteries.
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