A vibration that has a higher or lower frequency than a sound, he found, tends to skew pitch perception up or down.
频率超过或低于声音频率的震动会分别引起音高知觉的上调和下调。
2
A nonlinear stochastic dynamic model is established which takes into consideration aircraft body pitch movements and the elastic vibration excited by the random runway.
建立了飞机在随机跑道激励下，考虑机身俯仰运动与弹性振动的非线性随机动力学模型。
3
Tone: Tones sre pitch variations, which are caused by the differing rates of vibration of the vocal cords.