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Practice #36,427
Q
हाल ही में किस देश ने दुनिया का पहला Deep Sea Radar विकसित किया है, जो उच्च ऊंचाई पर उड़ने वाले विमानों का पता लगा सकता है? | Which country has recently developed the world's first deep-sea radar that can detect high-flying aircraft?
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