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An acoustic engineer from Tallinn spent €7,400 creating a drone detector using weather-resistant microphones.

𝕊𝕡𝕣𝕚𝕟𝕥𝕖𝕣 𝕻𝕣𝕖𝕤𝕤

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20,365 次观看 • 2 个月前 •via X (Twitter)

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