名词
中文翻译：回声侦察机同义词
同义词：
['echo aircraft', 'echo drone', 'echo reconnaissance aircraft']
例句：
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1. The echo ranger was used to detect enemy intel during the Cold War.
回声侦察机在冷战期间被用来探测敌方情报。
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2. The echo ranger was equipped with advanced sensors and communication systems.
回声侦察机配备了先进的传感器和通信系统。
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3. The echo ranger was able to fly at high altitudes and over long distances.
回声侦察机能够飞到高海拔和长距离。