在军用方面，自从第二次世界大战期间为军事应用发明了雷达以后，它的应用已经迅速扩展到许多其他领域。
In military, since radar was invented and applied in the Second Word War, its application has fast expanded to many other fields.
在军用方面，自从第二次世界大战期间为军事应用发明了雷达以后，它的应用已经迅速扩展到许多其他领域。
In military, since radar was invented and applied in the Second Word War, its application has fast expanded to many other fields.
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