为了降低误报率，只要排除误报的因素就可以。
To reduce false positives, as long as the exclusion factors can be misleading.
该方法能够有效的判断压力波的传播方向和来源，从而排除了工况调整的影响，降低了系统误报率。
This method can effectively determine the direction of the pressure wave propagation and source, thereby excluding the impact of adjustment of working conditions, reduce the system false alarm rate.
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