牙周疾病，测量和制图的牙周袋，牙齿松动，并说明与动画和视频。
Periodontal disease, measuring and charting of periodontal pockets, and tooth mobility are illustrated with animations and video.
工程制图组合体的三维实体造型多，动画数据量大，对网络带宽要求高，因此，实现组合体数据的远程快速传输和实时交互成为组合体远程教学的关键和难点。
The remote teaching system of engineering drawing assembly has many 3D solid models and animations as well as much large data, it requires much quicker real-time response and wider network bandwidth.
三维动画设计是工程制图网络课件制作中的难点和重点。
The designing of the 3d animation is the key and difficult part in the Internet courseware making of engineering drawing.
《工程制图》课程的理论性和实践性较强，且内容比较抽象，多媒体教学可以集视频、动画、色彩、声音于一体，形象、动态地展示课程内容。
Project Drawing has practical and applied nature, and its content is abstract. Multimedia teaching could better display by video, animation, color and voice to show the course visibly and vividly.
三维动画设计是工程制图网络课件制作中的难点和重点。
Research on making net courseware of"chromosome aberration syndrome"with Flash MX;
三维动画设计是工程制图网络课件制作中的难点和重点。
Research on making net courseware of"chromosome aberration syndrome"with Flash MX;
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