自己不能控制) ,由于健康原因整天或大部分时间 在卧床null椅null沙发 - 0null077 社会活动指标(Social Activity Scale, SAC) 5 不存在由于健康导致的限制 U48, U49, U167, U169, - 0null000 4
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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。
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