echo transmittance of sound pressure是什么意思，echo transmittance of sound pressure的翻译，echo transmittance of sound pressure音标、读音、用法和例句

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echo transmittance of sound pressure是什么意思，echo transmittance of sound pressure的翻译，echo transmittance of sound pressure音标、读音、用法和例句_果味酸柯林斯词典