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同義字
radar
Radar is like a special tool that uses radio waves to find things far away, like airplanes or ships, by bouncing the waves off them.
同義字
microwave radar
Radar is like a special tool that uses radio waves to find things far away, like airplanes or ships, by bouncing the waves off them.
同義字
radio detection and ranging
Radar is like a special tool that uses radio waves to find things far away, like airplanes or ships, by bouncing the waves off them.
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