第四章是虚拟教学系统的具体实现。
The fourth chapter is the concrete realization of virtual character teaching system.
该系统作为暑期虚拟实践教学系统的重要组成部分，得到了很好的运用，实现了网上试题管理、在线考试、网上批卷等功能。
As an important part of the virtual practice teaching system, this system has many management functions, such as exams on line, managing exam papers on line and so on.
此外，本文实例实现了一个基于混合p 2 P计算模式的协同教学系统—虚拟教室系统原型。
Moreover, it implements a prototype of a collaborative teaching and learning system, which named "Virtual Classroom", based on mixed P2P computing pattern.
阐述了基于VRML的工程热物理虚拟实验教学系统的开发方法、系统结构及关键技术。
This article expounded the development, systematical structure and core technique of the thermophysical experiment teaching system based on VRML.
阐述了基于VRML的工程热物理虚拟实验教学系统的开发方法、系统结构及关键技术。
This article expounded the development, systematical structure and core technique of the thermophysical experiment teaching system based on VRML.
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