Under the circumstances that there are multi noise sources, we can get the effective method of how to judge main the noice source by deriving the formula of acoustic pressure evel decibel.
在有多个噪声源的情况下，通过推导声压级分贝值的运算公式，得出了判定主噪声源的有效方法。
Under the circumstances that there are multi noise sources, we can get the effective method of how to judge main the noice source by deriving the formula of acoustic pressure evel decibel.
在有多个噪声源的情况下，通过推导声压级分贝值的运算公式，得出了判定主噪声源的有效方法。
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