ANECHOIC CHAMBER TEST SETUP - NARA - 17444712.jpg
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ANECHOIC CHAMBER TEST SETUP NARA 17444712, Anechoic chambers, US National Archives series: Photographs Relating to Agency Activities, Facilities and Personnel, Images from the National Archives and Records Administration, US National Archives location: other, ANECHOIC CHAMBER TEST SETUP
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ja
ANECHOIC CHAMBER TEST SETUP NARA 17444712、音響室、米国国立公文書館シリーズ:活動・施設・人事に関連する写真、米国国立公文書館管理局の画像、米国国立公文書館の位置:他の、ANECHOIC CHAMBER TEST SETUP
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anechoic chamber anechoic many-chambered setup frame-up