交通需求与交通供给之间的正反馈效应，使得路网规划方案难以适应交通需求的变化。
The positive feedback effect between the traffic demand and the traffic supply makes the road net plan hard to suit the future traffic demand.
网络中的每个消费者受到网络效应的影响，率先达到临界容量的网络会在正反馈效应的作用下获得巨大的竞争优势。
Every one in this network is influenced by network effects. The first network that reaches the critical mass would gain competitive advantage under the force of positive feedback.
指出了牛鞭效应产生的原因是由于供应链系统需求预测所表现出的正反馈动力学特性。
The paper claims bullwhip effect is caused by the active feedback dynamics feature presented by the demand predicts of supply chain system.
以系统动力学理论为基础，结合产业集聚效应的正反馈特征，对人才流、技术流、资金流和市场流的因果关系进行了探讨。
Based on theory of system dynamics, the causal loop diagrams of manpower, technology, money and market flows are analyzed together with positive feedback of industrial agglomeration effect.
以系统动力学理论为基础，结合产业集聚效应的正反馈特征，对人才流、技术流、资金流和市场流的因果关系进行了探讨。
Based on theory of system dynamics, the causal loop diagrams of manpower, technology, money and market flows are analyzed together with positive feedback of industrial agglomeration effect.
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