The gas expanded and rushes out through the rear of the tube.
气体膨胀并由管子后方涌出。
Bell was referring to an internal tube carrying air that can affect the aerodynamics of the rear wing and provide extra speed on the two long straights on the Sakhir track.
Bell 指的是赛车内部一根能够传递空气的导管，它能够影响尾翼的空气动力情况从而在Sakhir赛道的两条大直道上提供额外的速度。
The pedal of its bottom is made of advanced alloy, and the pole and rear-wheel cover are made of high strength steel tube, which looks quite beautiful and firm.
车底踏板采用高级合金制造，车杆和后轮盖（刹车）刹车采用高强度钢管制造，美观坚固。
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