sound-absorbing material with composite structure是什么意思，sound-absorbing material with composite structure的翻译，sound-absorbing material with composite structure音标、读音、用法和例句

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sound-absorbing material with composite structure是什么意思，sound-absorbing material with composite structure的翻译，sound-absorbing material with composite structure音标、读音、用法和例句_伍贰汉英词典