第四章详述了利用纯整数线性规划的方法建立海运渡箱系统的优化模型；

Forth chapter: put forward innovating model: empty container reposition optimization model with Pure integer Linear Programming(PILP).

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分支定界法可求纯整数或混合整数线性规划问题，求解方法由分支和定界组成。

To develop a branch and bound method for this problem, a nonlinear integer-programming model was constructed.

youdao

分支定界法可求纯整数或混合整数线性规划问题，求解方法由分支和定界组成。

To develop a branch and bound method for this problem, a nonlinear integer-programming model was constructed.

youdao