采用负压波法检测管线泄漏信号。
The negative pressure wave method was proposed for a pipeline leak detection system.
在此基础上，研究了BP神经网络在泄漏信号识别和分类中的应用。
On the basis of above analysis, the application of the BP neural networks in leak signals identification and classification is made.
研究了埋地管道泄漏信号波的传播方程，泄漏信号频率特性以及衰减方程。
The buried pipe transfer equation, the frequency character and the attenuation equation of the leak signal are studied.
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