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Long distance, large capability and high quality of transmission are required in modern communication system.
现代通信系统要求通信距离远、通信容量大、传输质量好。
youdao
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Long distance, large capability and high quality of transmission are required in modern communication system.
现代通信系统要求通信距离远、通信容量大、传输质量好。
youdao