人工神经网络不具备统计回归模型的显式表达形式，是一种隐式模型，因而有它的缺陷性。
Artificial neural network is a kind of implicit expression without explicit expression as statistical regression model, and it is its disadvantage.
应用人工神经网络理论，合理选择激光冲击参数，对球墨铸铁QT450-10进行了激光冲击试验，并用扫描电镜和数显硬度仪等进行了分析。
Selecting laser shocking parameters with the application of artificial neural networks theory, the high power density, neodymium -glass laser is used to laser shock process ductile iron QT450 - 10.
其具有双向调节脑血管痉挛收缩和舒张的作用，对血管神经性头痛具有显 著的疗效。
The medicine combination can regulated the contraction and the relaxation of cerebral vasospasm in bidirectional way and has significant curative effect on the angioneurotic headache.
其具有双向调节脑血管痉挛收缩和舒张的作用，对血管神经性头痛具有显 著的疗效。
The medicine combination can regulated the contraction and the relaxation of cerebral vasospasm in bidirectional way and has significant curative effect on the angioneurotic headache.
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