“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	inspection of pattern noise inspection of person-related image inspection of physique inspection of posture and movement inspection of published books inspection of reflected light intensity inspection of repair and renovation for pressure vessels inspection of source device inspection of specific manipulation inspection of the excretions inspection of the external genitals and anus inspection of the five sense organs inspection of the head and face inspection of the limbs inspection of the neck inspection of the skin inspection of the tongue body inspection of the trunk inspection of tongue coating inspection of vanishing point inspection of vehicle-related image inspection of video inspection of video authenticity inspection of video character inspection of video process

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