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话路传真(一类机)在电话网中的传输
价格：￥0.00
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话路传真(三类机)传输要求
Document facsimile (group 3) transmission requirement
价格：￥0.00
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话路传真(二类机)在电话网中的传输
价格：￥0.00
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低比特率通信的视频编码
Video coding for low bit rate communication
价格：￥0.00
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广播电视短程光缆传输技术参数
Technical parameters for short distance optical cable transmission of broadcasting and television
价格：￥0.00
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