second harmonic
collocation二次谐波
The second harmonic has twice the frequency of the fundamental.
二次谐波的频率是基频的两倍。
谐波
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谐波
A component frequency of a wave or signal that is an integer multiple of the fundamental frequency.
The second harmonic is twice the frequency of the fundamental tone.
第二谐波的频率是基音的两倍。
波的信号中频率为基频整数倍的成分频率
A component frequency of the signal of a wave that is an integer multiple of the fundamental frequency.
在弓弦乐器上,可以在特定弦的谐波系列中演奏而没有基音的音符的位置
The place where, on a bowed string instrument, a note in the harmonic series of a particular string can be played without the fundamental present.
进入由于吸引力而发展出近似球形质量的势能的一类函数之一
One of a class of functions that enter into the development of the potential of a nearly spherical mass due to its attraction.
某人的孩子
One's child.
The sound wave contains several harmonics that give it a rich timbre.
声波包含多个谐波，使其音色丰富。
Engineers filter out unwanted harmonics to improve signal quality.
工程师过滤掉不需要的谐波以提高信号质量。
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二次谐波
The second harmonic has twice the frequency of the fundamental.
二次谐波的频率是基频的两倍。
三次谐波
The third harmonic is often filtered out in audio amplifiers.
音频放大器中通常滤除三次谐波。
球谐函数
Spherical harmonics are widely used in quantum mechanics.
球谐函数在量子力学中被广泛使用。
奇次谐波
Odd harmonics give the sound its characteristic edge.
奇次谐波赋予声音特有的尖锐感。
偶次谐波
Even harmonics are less common in this type of distortion.
这类失真中偶次谐波不太常见。
高次谐波
Higher harmonics gradually lose energy and amplitude.
高次谐波的能量和振幅逐渐衰减。
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记忆联想：弹吉他时轻触弦的中点，发出的清亮高音就是 harmonic（泛音/谐波）——它是基频的整数倍成分。
语域：mixed 常见场景：physics/audio electronics、music (bowed string instruments)、mathematics harmonic 作名词时多用于专业或技术语境，而不是日常口语。在物理学或电子工程中通常指“谐波”；在音乐领域，尤其是指弓弦乐器演奏时，指“泛音”；在数学中则指“调和函数”。整体属于正式、书面的用法，日常对话中较少出现。
常以复数形式出现
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.