And, the system can realize functions of automatic irrigation, drainage warning, real time clock, historical data inquiry, data up-transmission and two-way communication.
系统能够实现自动化灌溉，具有排水警示、实时时钟、历史数据查询、数据上传及双向通信等功能。
Middleware for commodity trading system should satisfy the attributes of real-time, reliability, security, and efficient transmission of data, etc.
交易系统中间件应满足实时性、可靠性、安全性和数据传输的高效性等性能需求。
The paper describes the principle of multicast and its route protocol, designs a system of collecting video data, and analyses a network of real time video data transmission.
论述了组播传输技术的原理和相关的路由协议，设计了一个视频信息的采集系统，分析了实时视频信息组播传输网络。
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