There are five basic types of data communication system

有五种基本的数据通信系统

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An intelligent infrared data communication system is introduced.

介绍了一种智能红外数据通讯系统。

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Data communication system, method, apparatus and digital interface.

数据通信系统，方法，装置和数字接口。

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In other words, new threats are being developed using very sophisticated peer-to-peer programming tools that are targeting not just a certain class of customer or data, but a particular individual (say, a four-star general at the Pentagon) or a specific piece of data (such as the communication algorithms of a particular weapons system).

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The Expert Meeting on Science, Technology and Innovation for South East Europe to convene on Thursday 22 November as a preparatory event to the round table will discuss the above-indicated STI system capacity in SEE and pay particular attention to the research infrastructures, statistical data, regional networks and communication of science.

UNESCO: Bosnia and Herzegovina to host discussions towards the elaboration of a roadmap of science priorities in South East Europe | United Nations Educational, Scientific and Cultural Organization