在出现极其长的开发循环(例如，航空交通管制系统)的领域中，这是至关重要的。
In domains with extremely long development cycles (such as air traffic control systems), this is crucial.
二次雷达是现代航空交通管制系统中的重要组成部分，它是通过对询问 信号应答而发现目标的雷达。
Secondary radar is an important equipment in modern air traffic control system, it identify the target by interrogator sending a inquiry toward the aircraft and the aircraft responsing in the air.
这次空运，不仅仅是历史上唯一一次空中运输大量煤炭，还给航空交通管制和货运管理带来了飞跃，甚至还用电报机临时搭建起了简单粗糙，但行之有效的电子数据交换系统。
The airlift was not just the only time in history when large quantities of coal have been delivered by air. It also brought leaps in air-traffic control and cargo handling.
本文基于民航空中交通管制系统的研发工作，讨论了使用统一建模语言（UML）对雷达管制席子系统进行分析与设计。
This papers, which is based on research of the civil ATC system, discuss how to use the UML(Unified Modeling Language) to analyse and design the Radar Control Workstation subsystem.
本文基于民航空中交通管制系统的研发工作，讨论了使用统一建模语言（UML）对雷达管制席子系统进行分析与设计。
This papers, which is based on research of the civil ATC system, discuss how to use the UML(Unified Modeling Language) to analyse and design the Radar Control Workstation subsystem.
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