scientific experiment equipment - hand extracting and injecting liquid solution into test tube with pipette - 吸液管 個影片檔及 b 捲影像00:25
female researchers working in a research facility. she looking through a microscope. - 吸液管 個影片檔及 b 捲影像00:21
cambridge clinical laboratories testing laboratory; england: cambridge: cambridge clinical laboratories:intscientist/lab technician working at fume... - 吸液管 個影片檔及 b 捲影像04:59
close up and slow motion of clear liquid oil drops from a lab pipette on white background - 吸液管 個影片檔及 b 捲影像00:10
close up and slow motion of falling crystal clear oil drops against a white background - 吸液管 個影片檔及 b 捲影像01:26水滴
close up and super slow motion of cosmetic serum drops in cream color from a lab pipette on white background - 吸液管 個影片檔及 b 捲影像00:46
close-up of pink liquid being pipetted into a small bottle reading 'mers' in a biomanufacturing lab during research into vaccines, uk. - 吸液管 個影片檔及 b 捲影像00:24
a laboratory technician's hand uses a pipette to withdraw fluid from a small vial. - 吸液管 個影片檔及 b 捲影像00:10
zo researcher extracting fluid from jar using pipette / boston, massachusetts, united states - 吸液管 個影片檔及 b 捲影像00:48
cu blood sample being taken from a child's fingertip at a clinic / thies, senegal - 吸液管 個影片檔及 b 捲影像01:06
may 1, 2009 laboratory technician running test at centers for disease control operations center / atlanta, georgia, united states - 吸液管 個影片檔及 b 捲影像00:25
1950s mcu technician checking radiation with a geiger counter / hanford, washington, united states - 吸液管 個影片檔及 b 捲影像00:06
1950s montage technicians checking radiation with pipette at mobile lab / hanford, washington, united states - 吸液管 個影片檔及 b 捲影像00:20
a research scientist fills test tubes using a pipette and holds one up to look at its contents. - 吸液管 個影片檔及 b 捲影像00:10
close-up of a scientist's hands dispensing liquid into test tubes tilting up to her face. - 吸液管 個影片檔及 b 捲影像00:20