本文主要研究逆向物流系统构建中的一个重要方面：网络设计与优化。
The paper focuses on one of the main aspects in the construction of reverse logistics system: network design and optimization.
由此构建了良好的人工生态系统，并使系统内部及其与外界的物质与能量流动过程得到调节与优化，使整体环境得到整治。
The benign ecosystem has been constructed with the adjustment and optimization of internal and external material and energy flows so that the environment has been remediated to a certain extent.
同时探讨了医院档案网络化管理的硬件环境，软件及管理系统内容的构建与优化。
The article also explores the hardware environment, construction and optimizing method of software and management issues in networking management of archives in hospital.
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