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芬兰汽车制造公司最近生产了一种履带式越野摩托车,最高时速70公里,并能牵引一吨重的东西。它的履带是尼龙制成的;特制的挡风玻璃厚3毫米,既能挡风,也不怕碰撞。这
Finnish carmaker recently produced a tracked off-road motorcycle capable of a maximum speed of 70 kilometers per hour and pulling a ton of weight. Its track is made of nylon; a special windshield 3 mm thick, both wind, not afraid of collision. This