数字数据传输系统
Digital data transmission system
以上为机器翻译结果,长、整句建议使用 人工翻译 。
20世纪晚期,在发达国家中,电报的大部分应用已被用计算机技术的数字数据传输系统取代。
By the late 20th century the telegraph had been replaced in most applications in developed countries by digital data transmission systems Based on computer technology.
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