名词
中文翻译：防空机构
同义词：
['air defense service', 'air defense organization']
例句：
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1. Theair defense agency is responsible for monitoring and tracking enemy aircraft in the sky.
防空机构负责监视和跟踪天空中的敌机。
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2.The air defense agency has been working tirelessly to improve our national security.
防空机构一直在努力提高我们的国家安全。
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3. The air defense agency has launched a new radar system that can detect and track enemy aircraft at long distances.
防空机构已经启动了一种新型雷达系统，可以在远距离探测和追踪敌机。