Modulation technique is very meaningful for the digital data transmission efficiency.

调制技术对数据传输效率有重要的意义。

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Because of its convenient, flexible and of low cost, the voice band modem is widely adopted in digital data transmission, especially in access-loop.

采用话带调制解调器进行数据信息传输，特别是在接入环路中，具有价格低、方便、灵活的优点，是目前广为人们采用的一种数据传输方式。

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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.

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。

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Broadcom Corporation is a developer of highly integrated silicon solutions that enable broadband digital data transmission to the home and within the business enterprise.

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Numerous digital data sources are becoming available because of a combination of increasing data storage, data processing and data transmission productivity (effective available bandwidth appears to double approximately every 21 months).

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The National Radio Astronomy Observatory (NRAO) that runs the facility has for a decade been fitting it with state-of-the-art digital electronics, a new central computer, and high-speed transmission lines to carry the data that the 25m, 200-tonne dishes gather.

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