方法采用分布参数法建立微分方程，并进行离散求解。
Using the distribution parameter method, established a differential equation, and made its discrete solutions.
通过引进辅助变量的方法建立微分方程组的扩充系统。
This paper establishes an extended system of a system of differential equations by introducing some supplementary variables.
对分布式供应链中的错劣信息的传播机制进行了研究，通过建立微分方程刻划错劣信息的传播模型。
This paper studies the diffusion mechanism of error or inferior information in distributed supply chain, differential equations are set up to depict its diffuse mechanism.
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