中文说明：
BP神经网络在齿轮箱故障诊断中的应用.介绍了BP网络的原理、算法，并用BP网络对采煤机截割部齿轮箱机械传动系统的故障进行了趋势预测。
English Description：
The BP neural network in the application of the gearbox fault diagnosis. This paper introduces the principle and algorithm of BP network, and using BP network gear box of coal winning machine cutting part fault trend prediction for mechanical transmission system.