浮力驱动式航行器螺旋线运动模式的探索与实现，扩大了浮力驱动式水下航行器的应用范围，不仅可作远航程用途使用，而且可作定区域用途使用。
The exploration and implementation of underwater vehicle's spiral motion create broader application scope for underwater vehicle, not only for long range voyage, but also for restricted region motion.
婚礼期间，这两位新人心里一定会十五只吊桶打水——七上八下（注1），因为这次航程将有15次过山车式的俯冲，持续时间30秒。这种飞行方式，用航空专业术语说，叫做抛物线弧形俯冲。
The newlyweds are sure to have butterflies in their stomachs because the trip includes 15 rollercoaster-type dives, known as parabolic arcs, which last up to 30 seconds.
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