defence system

Development of People Aerial Defence Alarm System Based on Virtual Private Network

基于虚拟专网技术的防空报警系统开发

The immune system is our main defence against disease.

人体的免疫系统是抵御疾病的主要屏障。

But surprisingly, plants use this latter defence system only half-heartedly.

但令人吃惊的是, 植物对后一种防御系统的利用缺乏十足的热情.

Also helps to and strengthen the skin's natural defence system, protecting it irritants and environmental stress.

同时,亦能加强肌肤的天然防御系统, 防止肌肤受到刺激物及环境中的有害物侵害.

Analysis and Design of Aerial Defence System Based on Unified Modeling Language

基于UML的人防电子地图系统分析与设计

Anti aircraft gun missile system is the main air defence system for the emergency mobile forces in the future high tech limited war.

弹炮一体化防空系统是未来高技术局部战争中应急机动部队的主要防空武器。