求翻译：因此,在考虑车辆不超载的情况下,研究构建成本最小化的冷链物流配送车辆路径问题的数学模型,具有重要的理论和实践意义。 在物流配送管理中,合理选择配送路线,是控制物流成本的关键。是什么意思？

Therefore, in considering the case of the vehicle is not overloaded, the cost of construction to minimize cold-chain logistics and distribution vehicle routing problem of mathematical models, has important theoretical and practical significance. In logistics and distribution management, a reasonable

Therefore, in considering the circumstances, overloading vehicles not completed research framework for the smallest of the cold chain logistics vehicle path issues of mathematical models, it is of great theoretical and practical significance. The logistics and distribution management, reasonable cho

Therefore, in considered the vehicles overload in the situation, the research construction cost minimum cold chain physical distribution allocation vehicles way question mathematical model, does not have the important theory and the practice significance. In the physical distribution allocation mana

Therefore, consider the case of vehicle overloading, research on constructing minimum cost for cold chain logistics distribution vehicle routing problem with mathematical models, is of great theoretical and practical significance. In the management of logistics and distribution, rational selection o

Therefore, in considering the case of the vehicle is not overloaded, the cost of construction to minimize cold-chain logistics and distribution vehicle routing problem of mathematical models, has important theoretical and practical significance. In logistics and distribution management, a reasonable