用专家系统实现了机床主轴轴承的优化组合和程序流程的自动控制，最后完成了主轴部件装配图的计算机辅助设计。
The application of expert system in the spindle bearing combination of machine tool is discussed. By means of the expert system, the CAD of spindle parts assembly drawings can be completed.
论述了圆孔拉刀全参数化计算机辅助设计软件中有关拉刀各部分尺寸计算，总体程序设计，自动生成零件图及其强度校验的实现方法。
This paper deals with the realization of dimension calculations general programming, parts pattern auto -forming and strength test in the whole parameter CAD Software of the round hole broach.
实验表明，多层前传神经网络模型可以有效地对天线的方向性图进行建模，可用于天线的计算机辅助设计（CAD） 。
The experiments show that the multi_layer feed forward neural networks can model the radiation patterns of the antennas efficiently and are suitable for the CAD of antennas.
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