以下为句子列表:
英文: When confirming the location of logistics distribution center by using gravity method, it is limited in the actual application, because the location selection method only takes into account traffic cost rate and freight traffic volume.
中文: 摘要采用重心法确定物流配送中心的位置,由于选址因素只包括运输费率和货运量,在实际应用中受到很大限制。
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英文: With this policy the long-run average cost rate of system is minimized.
中文: 运用该算法,求得了使系统长期运行平均费用率最低的预防性维修阈值与检测间隔分布。
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