Form the necessity for establishing automatic command systems of important area, the status quo of important area air defense is analyzed.
从建立重点区域防空指挥自动化系统的必要性出发，分析了目前重点区域防空系统的现状。
John Collom was a British thinker on sea power and expert on imperial defense in the 19th century. He gave the first comprehensive exposition to the necessity and importance of Britain's defense.
约翰·科洛姆是19世纪英国的海权思想家和帝国防御问题专家，他首次全面阐述了英帝国防御的必要性和重要性。
In theory, people presently judge self-help of environmental infringement mainly according to the theories of traditional criminal law, legitimate defense in civil law and necessity.
目前理论界对于环境侵权自力救济的认定，主要适用传统刑法与民法正当防卫、紧急避险的构成理论。
The necessity of urgent defense is the perpetrator have the defense necessary when they face urgent violated.
紧迫防卫的必要性是指行为人面临紧迫的不法侵害，具有防卫的必要。
The necessity of correlation technology that navigation warfare requires through the analysis of attack and defense is discussed.
从进攻与防御两方面探讨了导航战对相关技术的需求。
The necessity of correlation technology that navigation warfare requires through the analysis of attack and defense is discussed.
从进攻与防御两方面探讨了导航战对相关技术的需求。
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