“ineffectiveness of high frequency”的概念、定义、翻译、参考文献-科学参考

单词	ineffectiveness of high frequency
释义	ineffectiveness of high frequency Encyclopedia 工学高频失效释 ineffectiveness of high frequency高频失效当噪声以平面波进入消声器的平直的介质流通通道，通道横截面尺寸一定时，频率越高（波长越短）的噪声就有越大的比例接触不到消声构件的壁面，消声构件对这些高频噪声的衰减作用逐渐减弱直至消声效果可以忽略的现象。
随便看	liquid crystal beam deflector liquid crystal cell liquid crystal compensation film liquid crystal diffraction grating Liquid Crystal Display liquid crystal display liquid crystal display device liquid crystal display, LCD liquid crystal display materials liquid crystal display simulation software liquid crystal display technique liquid crystal display working mode liquid crystal flat display liquid crystal grating liquid crystal lens liquid crystal light modulating film liquid crystalline polymer liquid crystalline state of polymer liquid crystal memory liquid crystal nanostructure liquid crystal on silicon liquid crystal on silicon, LCOS liquid crystal optical communication devices liquid crystal optical logic devices liquid crystal phase

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