本文介绍了一个适用于经贸领域的行业EDI系统的设计及实现，对其总体结构及操作流程作了初步探讨，主要阐述了EDI通信包、EDI通信软件和EDI服务中心的设计。
This paper introduces a trade EDI system, and after discussing the architecture and operating procedure, describes the design of EDI message, EDI communication software and EDI service center.
本文从介绍青藏高原生态系统功能特征及服务价值入手，分析了生态系统服务功能弱化深层原因及影响，并就应对策略进行了初步探讨。
Starting with the characteristics of the eco-system service function in Qing-zang Altiplano and its service value, this paper analyzes the deeply factors, which influence the exertion of the...
本文从介绍青藏高原生态系统功能特征及服务价值入手，分析了生态系统服务功能弱化深层原因及影响，并就应对策略进行了初步探讨。
Starting with the characteristics of the eco-system service function in Qing-zang Altiplano and its service value, this paper analyzes the deeply factors, which influence the exertion of the...
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