Introducing pollution with disutility to utility function in a stochastic economic growth rate and pollution level by using stochastic optimization method.

摘要在一个具有随机污染消除技术的随机增长模型中，把带来负效用的污染引入效用函数。

Using an example,the dominancy of the present optimization method is testified in improving the efficiency of NC machining and cutting manufacture cost.

通过实例验证此优化方法在孔群加工中明显提高了数控加工的效率、降低了加工成本。

The assembly tolerance analysis and optimization method based on digital product design model is put forward according to the analysis of digital-ization preassembly method.

通过对数字化预装配方法的分析,提出了基于数字化产品设计模型的装配公差分析和优化方法。