这些节点可以从地面的振动测量出车辆的速度和方向。
They were able to measure the speed and direction of vehicles from ground vibrations.
研究飞行振动环境载荷地面试验模拟的等效性问题。
Excitation equivalence in ground vibration test with respect to real flight vibration environment is studied.
研究飞行振动环境载荷地面试验模拟的等效性问题。
Excitation equivalence in ground vibration test with respect to real flight vibration environment is studied.
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