In establishing the optimization model, the real continuous variables are changed into discrete 0-1 variables so that the nonlinear MIP model is transferred into a pure 0-1 nonlinear IP model.

• 在建模过程中，对模型中的连续实型变量进行离散化处理，从而使整个优化模型变成纯0-1非线性整数规划优化模型；