Keypoints:usefultermsanddefinitionsofVirtualRealityDifficultpoints:applicationsandfeaturesofVRMLRequirements:NewWords&Expressions:Virtualreality虚拟现实jerky颠簸的，急动的，此处指图像抖动abuse吸毒，滥用preventfrom阻止，妨碍infrontof在……前面relayvt.vi.中继，转播haptica.触觉的stylusn.指示笔，触针dystrophyn.营养(yíngyǎng)失调teleconferencen.（远程）电信会议13.1VirtualReality13.1VirtualReality13.1VirtualReality13.1VirtualReality13.1VirtualReality13.1VirtualReality13.1VirtualReality13.1VirtualReality13.1VirtualReality13.1VirtualReality13.1VirtualReality13.2RealWorkinVirtualReality13.2RealWorkinVirtualReality13.2RealWorkinVirtualReality13.2RealWorkinVirtualReality13.2RealWorkinVirtualRealityNewWords&Expressions:interactive交互的intranetn.企业内部互联网integrate使成整体，结合visualizationn.可视化presentationn.演示virtualadj.虚拟的criteria准则authorabilityn.创作性compose组成，写作，排字re-usabilityn.可重用性extensibility可扩展性explicitly明白地，明确地platform平台arbitrarily武断地，任意地static静态的animated动画的，活生生的dynamic动态的hyperlink超级联接authorv.制作available可利用的registration注册，登记(dēngjì)community团体，公用interoperable能共同使用的extensionn.延长，范围scope范围specification规范，说明书NewWords&Expressions:conceptually概念地aural听觉的modify更改，修改mechanisms机制primary原始的composition合成法，排版encapsulation封装semantic语义resolution分辨率latitude纬度，范围，地区interpretation解释，阐明mouse鼠标implicitly含蓄地，暗中地coordinate坐标recursively递归地，回归地sphere球体reference提及，参考书目enclose放入，封闭，包装hierarchical分层的，层次的spatialadj.空间的accumulation积聚，积累dissipatev.使消失，失去intractable难处理的compact紧凑的，简洁(jiǎnjié)的syntaxn.语法13.3AboutVRMLTheVirtualRealityModelingLanguage(VRML)isafileformatfordescribinginteractive3Dobjectsandworlds.VRMLisdesignedtobeusedontheInternet,intranets,andlocalclientsystems.VRMLisalsointendedtobeauniversalinterchangeformatforintegrated3Dgraphicsandmultimedia.VRMLmaybeusedinavarietyofapplicationareassuchasengineeringandscientificvisualization,multimediapresentations,entertainmentandeducationaltitles,webpages,andsharedvirtualworlds.虚拟现实建模语言(VRML)是一种描述交互式三维对象(duìxiàng)及客观世界的文件格式。VR