The optimum earn outline is obtained rarely by the traditional design method.
采用传统的设计方法，很难求得凸轮的最佳轮廓。
Optimization design which is different from traditional design method is introduced.
介绍了与传统设计方法不同的优化设计。
Actual calculation shows that optimization has great advantages than traditional design method.
实际算例表明，优化设计比传统设计有很大的优越性。
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