4k camera slide showing aperture progression from f/1.4 to f/22 with depth of field demonstration - 橫隔膜 個影片檔及 b 捲影像00:18
understanding the human respiratory system with animation and clear visuals for easy learning. 3d animation - 橫隔膜 個影片檔及 b 捲影像00:12體檢
fall river, mass. - jimmy neilson arrives for operation on 'upside down' stomach - as in alyce mchenry case." / ext truesdale hospital, fall river,... - 橫隔膜 個影片檔及 b 捲影像01:00
medical students in class paying attention to male doctor asking questions and explaining - 橫隔膜 個影片檔及 b 捲影像00:14
handsome teacher explaining about the respiratory system to his students at a teaching hospital - 橫隔膜 個影片檔及 b 捲影像00:11
doctor teaching an anatomy class in medical school and pointing at a whiteboard - 橫隔膜 個影片檔及 b 捲影像00:16
cheerful female doctor teaching a class to a group of med students at the hospital - 橫隔膜 個影片檔及 b 捲影像00:07
diverse students in a respiratory system class standing next to the whiteboard answering the doctors questions - 橫隔膜 個影片檔及 b 捲影像00:15
male doctor explaining new concepts to a group of students during a class at the hospital - 橫隔膜 個影片檔及 b 捲影像00:11
students paying attention while doctor explains new concepts at a teaching hospital - 橫隔膜 個影片檔及 b 捲影像00:05
abstract medical background with flat icons and symbols loop animation background - loop - white color - 橫隔膜 個影片檔及 b 捲影像00:08
abstract medical background with flat icons and symbols loop animation background - loop - yellow color - 橫隔膜 個影片檔及 b 捲影像00:08
abstract medical background with flat icons and symbols loop animation background - loop - pink color - 橫隔膜 個影片檔及 b 捲影像00:08
abstract medical background with flat icons and symbols loop animation background - loop - green color - 橫隔膜 個影片檔及 b 捲影像00:08
abstract medical background with flat icons and symbols loop animation background - loop - blue color - 橫隔膜 個影片檔及 b 捲影像00:08體檢
monitor of graphic of mechanical ventilation in an intensive care hospital. - 橫隔膜 個影片檔及 b 捲影像00:20醫學掃描
