名词
中文翻译：回声采样器
同义词：
['echo recorder', 'echo recorder', 'echo recorder']
例句：
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1. The echo sampler was used tocapture the sound of the waves.
回声采样器被用来捕捉海浪的声音。
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2. The echo sampler helped us to understand the environment better.
回声采样器帮助我们更好地理解了环境。
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3. Theecho sampler was used to study thebehavior of animals in the wild.
回声采样器被用来研究野生动物在野外的行为。