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DFD-100, the world's first driver hypo-vigilance (HPV)/fatigue detector, can detect the driver's heart rate change to determine his HPV/fatigue level. Fitted to the driver's seat belt, the device issues a warning whenever the driver's vigilance level drops below the limit.[Photo/chinadaily.com.cn] |
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A visitor wheels the Green Power Generator Hub Dynamo.[Photo/chinadaily.com.cn] |
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