As a string vibrates, its longer subsections produce lower and louder harmonics, while its shorter subsections produce higher and quieter harmonics. Click the image below to hear the first six harmonics of a string:
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豆包现在已经称得上整个字节的流量副中心。一亿多日活,谁都不敢小觑,谁都想从里面挖一点儿流量。,更多细节参见实时热点