HEAT EXCHANGER - NARA - 17468918.jpg
en
HEAT EXCHANGER NARA 17468918, 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, HEAT EXCHANGER
commons
ja
HEAT EXCHANGER NARA 17468918、米国国立公文書館シリーズ:活動・施設・職員関係の写真、米国国立公文書館所蔵画像:他、HEAT EXCHANGER
commons_translated
heat exchanger heat content exchanger