Author expatiates framework design method of model library system in agricultural information decision support systems and the process of form model in cost benefit analysis.
阐述了农业信息决策支持系统中模型库系统结构设计方法，以及经济效益分析的构模过程。
To resolve these shortages of present CAD systems, studied a pen-input CAD system which is to support conceptual design.
针对当前CAD系统的不足，提出对于支持概念设计的笔式CAD系统的研究，并探讨实现这样一个系统的问题及解决。
User manuals and system design documents are out of date and inaccurate, which are unable to provide effective support for existing systems.
遗留系统往往有复杂的结构，用户手册和系统设计文件过时、不准确，对现有系统已经不能提供有效支持。
应用推荐