说明：  一个关于vrml技术的小结性资料，精炼的介绍了vrml中使用大的插件管理器，开发环境及相关内容，是虚拟现实技术初学者不可多得的好资料！
(on vrml a summary of the technical data, Refining vrml introduction to the use of a plug-in device management, the environment and development-related content, Virtual reality technology is a very good beginners information!)