名词
中文翻译：谐振线
同义词：
['harmonic', 'harmonious']
例句：
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1.The harmonic line in the music is very soothing.
音乐中的谐振线非常舒缓。
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2.The harmonic line of the piano is mesmerizing.
钢琴的谐振线令人着迷。
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3. The harmonic line of the spectrum is a crucial part of the analysis.
光谱的谐振线是分析的关键部分。