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探讨了故障预报技术的应用及其数值预测方法，给出了神经网络模型在预测过程中的算法．把神经网络、预测技术和诊断专家系统相结合建立了一个故障预报系统似空间推进系统气路部分的故障为例，实现了故障的预测．
The application of fault prediction technology and its numerical prediction method are discussed, and the algorithm of neural network model in the prediction process is given. By combining the neural network, forecasting technology and diagnosis expert system, the failure of gas path part of a space-based propulsion system of a fault forecasting system is established as an example to realize the fault prediction.