有向直线2中值问题 对于给定的有向直线L，编程计算在直线L 上增设2处服务机构的最小服务转移费用。-two straight to a mid-value problems for a given straight to the L, Programming included in the additional line L on the two services shift to the smallest cost.

有向直线2中值问题 对于给定的有向直线L，编程计算在直线L 上增设2处服务机构的最小服务转移费用。-two straight to a mid-value problems for a given straight to the L, Programming included in the additional line L on the two services shift to the smallest cost.

有向直线2中值问题 对于给定的有向直线L，编程计算在直线L 上增设2处服务机构的最小服务转移费用。-two straight to a mid-value problems for a given straight to the L, Programming included in the additional line L on the two services shift to the smallest cost.

有向直线2中值问题 对于给定的有向直线L，编程计算在直线L 上增设2处服务机构的最小服务转移费用。-two straight to a mid-value problems for a given straight to the L, Programming included in the additional line L on the two services shift to the smallest cost.