two test tubes of blood, with oxygen being bubbled through one, showing the difference in colour due to oxygenation - 紅血球 個影片檔及 b 捲影像00:14
test tube of blood that has been processed by a centrifuge with a layers of yellow plasma and red blood cells - 紅血球 個影片檔及 b 捲影像00:17血漿
female medical technician working w/ photoelectric colorimeter checking hemoglobin. dial on photoelectric colorimeter. modern medicine 1948, now... - 紅血球 個影片檔及 b 捲影像00:10