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Broadband Ultrathin Sound Absorption and Sound Insulation Structure Controlling an Acoustic Wave Propagation Path（英国）
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Release Time:2021-09-09
First Author:
王晓明
Disigner of the Invention:
Yulin Mei,梅艺璇
Application Number:
EP3570273
Authorization Date:
2017-04-26
Authorization Number:
EP17906922.4（英国）
Date:
2021-09-09
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Novel ultra-slim acoustic impedance transformer（英国）
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