美国通用航空发展趋势 tendency of general aviation in america
美国大型工程公司通用电气(GE)已经拥有了蓬勃发展的风力涡轮机业务，正在着手准备太阳能业务。
General Electric (ge), a large American engineering firm, already has a thriving wind-turbine business and is gearing up its solar-energy business.
本文通过嵌入式操作系统与通用操作系统的比较，闸述了嵌入式操作系统独有的特点及其发展前景。
Through compare the embedded operating system with general operating system, this paper describes unique characteristic of embedded operating system and its development prospect.
介绍了通用分组无线业务(GPRS)技术、GPRS通信的特点以及发展前景。
This paper introduces the General Packet Radio Service (GPRS) technology, its communication characteristics and development prospect.
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