wave-train frequency 中文意思是什麼
wave-train frequency
解釋
波列頻率-
The wave frequency has close relationship with the train ’ s speed. the train ’ s speed is more rapid, the frequency of wave is also higher, and the wavelength is shorter. if the distance between two wheels on the same rail is equal to
如果兩個車輪之間的距離等於半波長的奇數倍,那麼當這兩個車輪所產生的振動波傳播到鋼軌上同一點的時候,所引起的振動在該點的相位正好相反,振動疊加后的和位移將為零。
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