| 摘要 |
A motorcycle helmet for use in both cold and hot weather. The body of the helmet is equipped with a ventilation section and an air conduction section. A temperature-control instrument is used to control and regulate changing temperatures thus causing the air inside the body of the helmet to cool down or to warm up. The combined effect of the ventilation section and the air conduction section provides the interior of the helmet with good ventilation and proper temperature control.
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