GRATING AND HEAT EXCHANGER SHOWING COAL AND ASH FORMATIONS - NARA - 17468097.jpg
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GRATING AND HEAT EXCHANGER SHOWING COAL AND ASH FORMATIONS NARA 17468097, 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, GRATING AND HEAT EXCHANGER SHOWING COAL AND ASH FORMATIONS
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国立公文書館所蔵画像:国立公文書館所蔵画像:ほか、収集と発掘の現場 展示と人事
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heat of formation heat exchanger diffraction grating heat content grid metal grating