不是減, 是‘區(qū)別’
particle speed - 波粒子速度
wave speed - 波速, 跟頻率有關(guān)
what is the difference between particle speed and wave speed
what is the difference between particle speed and wave speed
學(xué)波呢 …… particle speed就是縱向運(yùn)動(dòng)速度?wave speed就是橫向速度?這倆減出來能得什么.
學(xué)波呢 …… particle speed就是縱向運(yùn)動(dòng)速度?wave speed就是橫向速度?這倆減出來能得什么.
英語人氣：397 ℃時(shí)間：2020-04-08 12:00:26
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