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亥姆霍兹共振吸声体
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亥姆霍兹共振吸声体
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亥姆霍兹共振吸声体
释
helmholtz resonance sound absorber
亥姆霍兹共振吸声体
一个硬质内表面的腔体通过短管与外界的大气联通构成的吸收声能、降低声音的构件。
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photoageing
photoaging
Photo Album for World War 1
photo album of the Seventh National Congress of the Communist Party of China preserved by Ren Bishi
photoallergy
photoammeter
photoanalysis
photoangulator
photoanode
photoassimilation
photo assisted catalysis
photo-assisted catalysis
photoassociation
photoautotroph
photoautotrophy
photoautoxidation
photobacteria
photo base
photobattery
photo-beat
photobehavior
photobiology
photobiont
photobleaching
photocaged amino acid
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