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1.Sound spectrography is a powerful tool for analyzing sound waves.
声谱学是分析声波的强大工具。
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2.By using sound spectrography, we can identify the source of a particular sound.
通过使用声谱学，我们可以识别出特定声音的来源。
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3. The researchers used sound spectrography to study the effects of noise on human health.
研究人员使用声谱学研究噪音对人类健康的影响。