二次雷达系统同时具有能识别我方目标的飞行高度、飞行距离和方位等信息的功能。
The secondary radar systems also fulfill the task of identify some information of the friend target about the aviation altitude, the aviation distance and the aviation azimuth.
在20世纪40年代，空中交通管制中心能够而且确实利用了第二次世界大战中新研制的雷达和改进的无线电通讯，但是这个系统还处于初级阶段。
In the 1940s, ATC centres could and did take advantage of the newly developed radar and improved radio communication brought about by the Second World War, but the system remained rudimentary.
第一部分综合的分析了软件的需求，设计了平台的框架结构，并介绍了多普勒天气雷达二次产品生成系统及其特点。
The first part analyse the soft requirement, design the framework of this platform, introduce Doppler Weather Radar Second Production Process System and its character.
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