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Through Sound density theory, the burning noise's radiation progress approach was successfully identified.
用声强法成功地识别出燃烧噪声的辐射途径。
youdao
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This wave of excess density is sound.
这种过剩密度的波就是声波。
youdao
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This wave of excess density is sound.
这种过剩密度的波就是声波。
youdao