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本文介绍傅氏声强测量中，用几何平均声压代替算术平均声压，可以减少计算工作量．并从理论上证明了两者之间的差异可以忽略，因此可以保证声压测量的精度．
This article describes the Fourier sound intensity measurement, the geometric mean sound pressure instead of arithmetic average sound pressure, can reduce the computational workload. And theoretically proved that the difference between the two can be ignored, so you can ensure the accuracy of sound pressure measurement.