scientist hands in gloves hold sterile flask with yellow liquid. oil research and toxic liquid concept - 燒瓶 個影片檔及 b 捲影像00:32
scientist hands in gloves hold sterile flask with red liquid. oil research and toxic liquid concept - 燒瓶 個影片檔及 b 捲影像00:14
slow motion shot of a laboratory glass flask containing a green liquid being dropped onto a hard surface. - 燒瓶 個影片檔及 b 捲影像00:20破壞
slow motion shot of a red liquid being swirled inside a laboratory glass flask. - 燒瓶 個影片檔及 b 捲影像00:36
a professional veterinarian is checking water quality at a cow farm. she is examining a water sample in a flask to ensure the animal's health. this modern, science-based approach to livestock care is vital for agriculture. - 燒瓶 個影片檔及 b 捲影像00:17
scientist working at botanical research laboratory. mixing a plant-based oil for herbal medicine - 燒瓶 個影片檔及 b 捲影像00:11
close up bunsen burner flame heats a glass flask filled with bubbling clear liquid - 燒瓶 個影片檔及 b 捲影像00:11
swirling oil droplets with bubbles in a vibrant yellow background, abstract oil patterns with air bubbles in twisting motion - 燒瓶 個影片檔及 b 捲影像00:29
close-up of a girl student stirring chemical solution in beaker during science experiment - 燒瓶 個影片檔及 b 捲影像00:10
close-up view of laboratory glasswares and tubes with different liquids for scientific research and experiments. modern laboratory with blurred background - 燒瓶 個影片檔及 b 捲影像00:10
close up of a medical sample being processed in a flask on a machine heating water - 燒瓶 個影片檔及 b 捲影像00:05
smoke from dry ice and water leaking from a flask on black background and the reverse - 燒瓶 個影片檔及 b 捲影像01:57
smoke from dry ice and water leaking from a flask on black background and the reverse - 燒瓶 個影片檔及 b 捲影像01:39
1958 montage scientist placing beakers containing bean seedling parts into radioactivity measurement chamber / united states - 燒瓶 個影片檔及 b 捲影像00:19
1930s montage men in lab handle dust in hands before pouring beaker of liquid onto the contents / washington, d.c., united states - 燒瓶 個影片檔及 b 捲影像00:38
1946 ms laboratory technicians working with microscopes and beakers / united states - 燒瓶 個影片檔及 b 捲影像00:08
tilt up from shelves of beakers and bottles of liquids to two scientists working in a research lab. - 燒瓶 個影片檔及 b 捲影像00:20
medium pan left from shelves of beakers and bottles of liquids to two scientists working in a research lab. - 燒瓶 個影片檔及 b 捲影像00:30
