Data is organized in a number of categories - Sales, Security, Computer, Internet, Communication, Financial Management, Training, etc. -, each category being further organized in sub-categories.

同时还数据对进行了分门别类的管理，类别有销售、安全、计算机、因特网、通信、金融管理和培训等，每个分类又有进一步的子分类。

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Communication technology refers to the transmission of data from one computer to another or from one device to another.

通讯技术是指从一台计算机向另一台计算机进行的数据传送或是从一个设备向另一个设备进行的数据传送。

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Battery is widely used in computer equipments, data communication system, medical control system, precise measurement system and traffic system as a sort of storing energy device.

蓄电池作为一种储能设备广泛应用于计算机设备、数据通讯系统、医用控制系统、精密测量系统和交通系统等。

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The secure communication link is a virtual private network communication link over the computer network in which one or more data values that vary according to a pseudo-random sequence are inserted into each data packet.

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