名词
中文翻译：次声
同义词：
['subsonic', 'infrasound']
例句：
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1. The scientists detected the first subsonic wave in the ocean.
科学家们探测到了海洋中的第一个次声波。
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2. Infrasound waves are often used for earthquake detection.
次声波通常用于地震检测。
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3. The sound of the wind through the trees creates a pleasant ambiance.
风吹过树梢的声音创造了一个愉快的氛围。