a scientist examines a slide of an asteroid under a microscope with the image appearing on a large screen. - 顯微鏡載玻片 個影片檔及 b 捲影像00:09
patient having his finger pricked and wiped with cotton ball, and doctor adjusting microscope and looking through it at a u.s. army field hospital /... - 顯微鏡載玻片 個影片檔及 b 捲影像00:32
cu blood sample being taken from a child's fingertip at a clinic / thies, senegal - 顯微鏡載玻片 個影片檔及 b 捲影像01:06
cu blood samples being analyzed after collection in a health clinic / thies, senegal - 顯微鏡載玻片 個影片檔及 b 捲影像00:19
1936 cu scientist testing yeast under a microscope at anheuser busch brewery in st. louis / missouri, united states - 顯微鏡載玻片 個影片檔及 b 捲影像00:10
close-up of a scientist's gloved hands removing and replacing slides with smears in a tray. - 顯微鏡載玻片 個影片檔及 b 捲影像00:15
various cu ecu hand holding small vial of dna while another hand opens the vial and uses a pipette to extract the dna and drop it onto a small piece of glass. - 顯微鏡載玻片 個影片檔及 b 捲影像00:25醫學樣本
cu lab technician's hand placing slide under objectives lens of microscope / berlin, germany - 顯微鏡載玻片 個影片檔及 b 捲影像00:20
