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[期刊论文] 作者：SALAHELDIN Ali Aboulkhsam DONG,
来源：计算机辅助绘图．设计与制造：英文版 年份：2009
Face-to-face Videoconferencing is a popular option for many large organizations because it minimizes the need for travel. Instead of continually paying for trav...
[期刊论文] 作者：SALAHELDIN Ali Aboulkhsam DONG,
来源：计算机辅助绘图．设计与制造：英文版 年份：2007
The International Telecommunications Union (ITU-T) and the International Standardization Organization/International Electrotechnical Commission (ISO/IEC) are th...
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