With the little expansion of human social production and scale of economic activity, the social economic impact on natural resources, global environment and danger are more and more serious.
随着人类社会生产和经济活动规模的不断扩张，社会经济对全球资源环境的影响和危害也越来越严重。
Logistics node is an important carrier of modern logistics, which could get economics of scale effect; decrease social logistics cost and improve the efficiency of logistics activity.
物流节点是现代物流的重要载体，具有规模经济效应、降低社会物流成本、提高物流运作效率的作用。
Logistics node is an important carrier of modern logistics, which could get economics of scale effect; decrease social logistics cost and improve the efficiency of logistics activity.
物流节点是现代物流的重要载体，具有规模经济效应、降低社会物流成本、提高物流运作效率的作用。
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