This paper gives a brief introduction of HN-5C short range mo-bile airdefencesystem, especially it's components, functions and features.
本文对HN-5C近程机动防空系统作了概括介绍，特别是对武器系统的各组成、功能及特点作了详细说明。
2
Making efforts develop electro optical countermeasures technique in airdefencesystem, which can counter effectively precision guided weapon.
为了有效对抗精确制导武器，在防空体系中大力发展光电对抗技术具有十分重要的意义。
3
Firepower scopes of many airdefence groups are overlapping, and firepower relation is complicated in densely-deployed group army regional airdefencesystem.