车辆使用率迅速增加，在世界新兴经济体尤然，所以，道路安全方面的能力建设至关重要。
Given this rapid expansion of vehicle use, especially in the world's emerging economies, capacity-building for road safety is crucial.
分别基于优化仓储时间和仓储量、车辆使用率以及综合成本等因素，提出求解问题的三种不同的启发式算法。
Three approximation algorithms are moreover proposed, and each of them respectively stresses the storage, vehicle utilization and the mixed cost of them.
分别基于优化仓储时间和仓储量、车辆使用率以及综合成本等因素，提出求解问题的三种不同的启发式算法。
Three approximation algorithms are moreover proposed, and each of them respectively stresses the storage, vehicle utilization and the mixed cost of them.
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