The XQuery data model supports any general type of document and any general dynamic parameter used to fetch and construct the document.

XQuery数据模型支持任何一般类型的文件和用于获取和构建文件的任何一般动态参数。

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It is analyse and calculation about the dynamic characteristic of motorcycle frame by FEM model, carry on validation through experimental modal method, Get back frame modal parameter and shake type.

利用有限元方法对摩托车车架动态特性进行了分析计算，并通过实验模态方法进行了相应的实验验证，获得了车架模态参数和振型。

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To BP neural shortcoming of network, study one dynamic self-adaptation is it study improvement type BP algorithm of parameter to adjust.

针对BP神经网络的缺点，研究了一种动态自适应调整学习参数的改进型BP算法。

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