periodic wind 周期风
A typical low-level wind shear of thunderstorm activates long periodic oscillation of an aircraft, causing tracking deviation of the aircraft.
典型尺度的雷暴低空风切变以长周期振动频率激励飞机，使其偏离预计下滑航迹。
The blade of a large horizontal axis wind turbine is a nonlinear periodic multi-body system with fluid-rigid-flexible coupling.
大型水平轴风力发电机桨叶为流-刚-柔耦合的周期时变多体系统。
On the assumption that the wind shear is sinusoidal, the effects of long periodic oscillation on the landing path of an aircraft were studied by computer calculation and with flight simulator.
在正弦风切变假定下，利用计算机计算和飞行模拟器模拟研究了长周期振动频率上下的正弦波风切变对飞机着陆航迹的影响。
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