The visual workflow system based on approving of object-oriented document is composed of workflow modeling, workflow engine and monitor, client and background application.
面向文档审批的可视化工作流系统由审批流建模、引擎和监视器，及客户端程序、后台应用等组成。
Based on the conditions of Middle Route of South-North water diversion project, this paper discusses the application of object-oriented visual simulation in long distance water diversion projects.
针对南水北调中线实际情况进行了研究，将面向对象的可视化仿真技术应用在长距离调水工程。
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