横向摩擦力是利用相反，与骑士有摆动和扭转身体产生运动。
The force of lateral friction is utilized instead, with the rider having to wiggle and twist their body to generate movement.
在这种情况下，气流速度与扭丝为使摆动片同气流保持位置关系所要产生的扭转量之间存在某种关系。
There will be a relation between the air speed and the amount of twist of the wire necessary to hold the plate in normal presentation to the current.
机翼与机身大多成固定角度，同时具备足够的刚性，使机翼在飞行中的 摆动或扭转 幅度不致过大，这一点对飞行员和乘客来说都相当重要。
Most wings extend from the fuselage at a fixed angle, and they are sufficiently rigid that they do not move or twist much in flight—certainly a reassuring feature for pilots and passengers alike.
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