双向视频教学系统是远程教学的一种新的重要教学手段，它能实现远程交互教学，提高教学质量。
Revesible video frequency teaching system is a new kind of important teaching method of distant teaching. It can realize distant teaching and studying and improve the teaching quality.
针对这个问题该文基于人机交互中的笔交互技术，设计并实现了一套几何教学系统，并将双向几何约束的相关技术应用于该系统中。
To solve this problem, this paper designs and implements a geometric teaching system based on PUI (Pen User Interface), and applies technique of bidirectional geometrical constraint to this system.
从提供一个交互、实用的B2B电子商务教学环境目的出发，基于角色互动模式的思路，阐述了B2B电子商务模拟教学系统的设计方法。
Based on role interact mode, the paper discusses the design method of B2B e-commerce simulation teaching system, for the purpose of providing an interactive and practical for students.
阐述了对实现多媒体CAI网络交互式教学系统的方法和技术．包括：多媒体CAI网络交互式教学系统的功能和性能；
The methods and technologies for building a multimedia CAI network interactive teaching system (MCNITS) is introduced.
针对目前手术教学中看不见、听不清的难题，将交互式手术教学系统应用于外科学临床教学实践。
To solve the problems of clinical surgery education such as difficulty in seeing and hearing, we apply a novel interactive digital operation teaching system.
针对目前手术教学中看不见、听不清的难题，将交互式手术教学系统应用于外科学临床教学实践。
To solve the problems of clinical surgery education such as difficulty in seeing and hearing, we apply a novel interactive digital operation teaching system.
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