FLAME EMISSIVITY TESTS - NARA - 17420977.jpg
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FLAME EMISSIVITY TESTS NARA 17420977, 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, FLAME EMISSIVITY TESTS
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ja
フレイム・エミシフィティ・テSTS NARA 17420977、米国国立公文書館所蔵:FLAME EMISSIVITY TESTS
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