同时给出了一个非线性直接优化算法，该算法避开了常规的台劳级数线性展开的方法，易于在计算机上实现。
A nonlinear direct optimization algorithm is given. The algorithm is diferent from the Talor expansion methods and easy to be realized by computer.
基于这种分析，简化了优化问题的求解过程，给出一种快速有效的直接解析算法。
Based on the analysis, the optimization procedure is simplified and fast and efficient algorithm is given.
这些环节中优化下料方案是提高原材料利用率最直接的方法，而优化下料方案的关键是构造有效的优化排样算法。
The most direct method to improve material usage is to optimize the cutting scheme, and the key is to develop efficient algorithms.
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