名词中文翻译
中文翻译：波动回声
同义词：
['oscillating echo', 'fluctuating sound']
例句：
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1.The ocean waves are creating a fluctuating echo that can be heard from miles away.
海浪产生的波动回声可以传得很远。
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2. The scientist used an oscillating echo to measure the distance between two points on the surface of the water.
科学家使用振荡回声来测量水面两点之间的距离。
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3. The fluctuating echo was so strong that it could be heard even in the dead of night.
波动回声如此强烈，以至于在深夜也能听见。