The phase mismatch error is the main error source of sound intensity measurement system. It is difficult to eliminate this error only by upgrading the accuracy of instrument.
相位失配误差是声强测量系统的主要误差源，仅靠提高仪器的精度很难消除这一误差。
The phase mismatch error is the main error source of sound intensity measurement system. It is difficult to eliminate this error only by upgrading the accuracy of instrument.
相位失配误差是声强测量系统的主要误差源，仅靠提高仪器的精度很难消除这一误差。
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