1·Bus, train and ship whistle, aerial defence alarm resounds.
汽车、火车、舰船鸣笛，防空警报鸣响。
2·Presently, anti-radiation UAV has become the important aim of the aerial defence weapon.
目前反辐射无人机已成为防空武器的重要作战目标。
3·So it is significative to evaluate combat capability of Interceptive aerial defence weapons system-of-systems.
因此，对阻击式防空体系的作战能力进行评估具有重要的意义。
4·It describes the manufacture of a system for people aerial defence alert control based on people aerial defence alerts multi-working modes.
介绍了基于人防警报系统多种工作模式的情况下警报控制系统的研制。
5·Based on the theory and function of modular artillery, the overall structure design of the self-constructing simulation system for aerial defence is proposed in this paper.
本文根据防空武器火控系统的功能实现与构架原理，提出了自构建防空武器仿真系统的总体结构设计。
6·By researching the efficiency of aerial defence missilery, the paper establishes the spheriform damage rule, and using it to assess the aerial defence missilerys efficiency.
文中通过对防空导弹效能分析的研究，建立了在三维空间内计算单发防空导弹毁伤概率的圆球毁伤规律模型。
7·The control-net for people aerial defence alarm system is an important subsystem and frail part, because the failure of it may directly lead to the failure of all the system.
人防警报系统的控制网络是整个系统的重要组成部分，也是最为脆弱的部分，控制网络的失败会直接导致整个系统的失败。
8·Communication system is an important part of improved aerial defence system, and the key of the project is realizing high speed and real time communication between control cabin and equipment cabin.
进行升级改造后，通信系统是各装备之间协同工作的关键所在，该项目的关键就是在设备舱与操作舱之间实现高速的准实时通信。
9·Unmanned combat aerial vehicle (UCAV) has become an important menace in the future air defence battlefield.
未来防空战场上无人攻击机已成为一种重要的空中威胁。
10·At the moment we have to improve in defence, and especially improve our aerial game. This problem penalised us at Siena, as they opponents were able to bring the ball to our area more often.
目前来说，我们在防守上还需要加强，尤其是防高空球，这点我们在和锡耶纳的比赛中受到了惩罚。