通过零件的特征参数属性和其特征编码关联其加工方法是目前技术水平下实现动态工艺知识有效管理的一种可行的方案。

The establishment of the relations between the feather code of parts and the working methods is the valid way of dynamic knowledge management in the current technology level.

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介绍了通过数字中频技术提取雷达信号脉内特征，并根据脉内特征参数对雷达信号调制形式进行识别。

The in-pulse features of radar signals are extracted by the digital IF technology, and the modulation forms of radar signals are identified according to the in-pulse feature parameters.

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以计算机数字图像处理技术为平台，基本实现了对针叶材微观结构特征参数的自定义提取。

Set computer image processing technology as the platform, basically the structure of softwood micro extraction of characteristic parameters of the custom.

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