名词
中文翻译：Unknown
同义词：
['overtone', 'overtone series']
例句：
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1. The overtones of the piano are melodious and harmonious.
钢琴的泛音是悦耳和谐的。
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2. The overtone series is a mathematical concept that describes the vibrations of matter.
泛音级数是一种数学概念，它描述了物质的振动。
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3. In music theory, the overtone series is used to describe the frequencies of different musical notes.
在音乐理论中，泛音级数被用来描述不同音符的频率。