名词
中文翻译：回声频率
同义词：
['echo', 'reverberation frequency']
例句：
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1.The sound of the waves echoing off the shore is soothing to the ear.
海浪拍打岸边的声音令人心旷神怡。
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2.The scientist used an echo frequency measurement to determine the depth of the ocean.
科学家使用回声测深法来确定海洋的深度。
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3.In a recording studio, the engineer adjusts the echo frequency to achieve the desired sound quality.
在录音棚里，工程师调整回声频率以获得理想的音效。