sequence showing a worker at an optical factory testing a block of quartz by reflecting it in a mirror. - 石英 個影片檔及 b 捲影像00:22
cu quartz crucible filled with silicon chips being lowered into crystal growing furnace tank for czochralski process, solar manufacturing plant solarworld, hillsboro, oregon, usa - 石英 個影片檔及 b 捲影像00:11
ms td solar plant lab technician carefully sorting through silicon chips and placing them piece by piece inside quartz crucible in crystal growing furnace for czochralski process, solar manufacturing plant solarworld, hillsboro, oregon, usa - 石英 個影片檔及 b 捲影像00:13
cu pan solar plant lab technician carefully placing silicon chips into quartz crucible in crystal growing furnace for czochralski process, mid section, solar manufacturing plant solarworld, hillsboro, oregon, usa - 石英 個影片檔及 b 捲影像00:12
cu zi solar plant lab technician carefully placing silicon chips into quartz crucible in crystal growing furnace for czochralski process, solar manufacturing plant solarworld, hillsboro, oregon, usa - 石英 個影片檔及 b 捲影像00:31
close up group native american artifacts hand axe ax red obsidian arrowhead jasper chert paiute indian stone tool in dirt from oregon great basin desert on white - 石英 個影片檔及 b 捲影像00:23箭頭, 古物
close up of native american broken hand axe ax jasper chert paiute indian stone tool in dirt from oregon great basin desert - 石英 個影片檔及 b 捲影像00:15古物
close up of native american red arrowheads obsidian jasper chert paiute indian stone tool in dirt from oregon great basin desert - 石英 個影片檔及 b 捲影像00:24
close up of native american red arrowhead jasper chert paiute indian stone tool in dirt from oregon great basin desert - 石英 個影片檔及 b 捲影像00:24古物
jeremy corbyn at airbus; england: hertfordshire: stevenage:intvarious shots men working in airbus lab / quartz crystals and computer equipment on... - 石英 個影片檔及 b 捲影像03:20