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膜共振吸声体
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膜共振吸声体
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膜共振吸声体
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membrane resonance sound absorber
膜共振吸声体
当膜周边密闭地安装在刚性壁面前,膜与刚性壁面间存在一定深度的空气腔时,形成的吸收声能、降低声音的构件。
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costume design
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costume of the Liao Dynasty
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costume of the Sui and Tang Dynasties
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costume pattern design
costume portrait photography
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