4 INCH SOLAR CELL - NARA - 17423038.jpg
en
4 INCH SOLAR CELL NARA 17423038, Solar cell panels in the United States, 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, 4 INCH SOLAR CELL
commons
ja
4INCH SOLAR CELL NARA 17423038、米国の太陽電池パネル、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:その他、4INCH SOLAR CELL
commons_translated
photoelectric cell solar cell unit cell holding cell photovoltaic solar telescope