得出了随着轮胎滚动速度的增大，轮胎的垂直动态刚度和阻尼逐渐减小的结论。
It was concluded that the vertical dynamic stiffness and damp decreased as the running speed of the tire increased.
分析了直升机从悬停到小速度前飞时，定常垂直气流的非均匀分布对直升机平衡操纵以及对系统摆振后退型模态阻尼的影响。
The influences of nonuniform vertical flow on helicopter trim controls and regressive lag modal damping levels were analyzed in hovering and forward flight.
阻尼器的对称轴线与被控机器或结构物的振动方向相垂直。
Its symmetric axis is vertical to the vibrating direction of the controlled machine or structural object.
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