data transmission and switching system
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资料传输与交换系统
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资料传输与交换系统
数据传输与交换系统
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Both transmission device and switching device are entirely digital, it's easily to control system and search data with multimedia computer which could reduce cost and improve performance.
采用了全数字化的传输和交换设备，利用多媒体计算机进行监控和辅助检索。使得成本降低，效率提高。
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