研究表明响度和尖锐度是影响摩托车声音品质的主要因素，而粗糙度和波动度对声音品质的影响不大。
Loudness and sharpness are of great importance to the sound quality of a motorcycle while roughness and fluctuation strength is of little importance.
研究表明响度和尖锐度是影响摩托车声音品质的主要因素，而粗糙度和波动度对声音品质的影响不大。
Loudness and sharpness are of great importance to the sound quality of a motorcycle while roughness and fluctuation strength is of little importance.
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