Bluetooth is a new wireless standard among them, it makes it possible that data and voice devices in network can connect each other and communicate rapidly and flexibly.

蓝牙就是其中的一种无线标准，它使网络中的数据和语音设备能够互连互通，实现快速灵活的通信。

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An Operating system that is used for storing data like a database. The best way to communicate with the system is over network.

这是个用于存储数据的操作系统，可通过网络与该系统通信。

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Wireless DDN is one of such solutions for wireless data transport service, which is provided for customers to communicate among industry equipments on network platforms.

无线DDN就是中国移动利用已有的网络平台，为行业客户提供的机器到机器的无线数据传输业务。

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