urban maintenance with equipment. city infrastructure workers managing drainage and utility systems - 輸送管 個影片檔及 b 捲影像00:21
abstract 3d animation of transparent spiral tube with liquid droplets moving inside. futuristic fluid motion, glass texture, water flow, science and technology concept, minimal modern background, molecular structure. - 輸送管 個影片檔及 b 捲影像00:07
vacations by the river. man relaxing in a floating inflatable tube towed by a red kayak - 輸送管 個影片檔及 b 捲影像00:08
asian nurse suctions mucus from a tube in the throat of a patient who had a tracheostomy and is recovering at home. - 輸送管 個影片檔及 b 捲影像00:19
metal pipes stacked neatly in a construction yard, showcasing various diameters and lengths of steel materials for building projects. 3d animation - 輸送管 個影片檔及 b 捲影像00:08
scientists use pipette dropper samples to test tubes.to conduct scientific experiments 4k stock video - 輸送管 個影片檔及 b 捲影像00:05
man, iv bag and nurse for healthcare in hospital, check medicine dose and saline drip injection. male person, icu and medical support for treatment, assessment and liquid drugs or supplement - 輸送管 個影片檔及 b 捲影像00:19
black woman, iv bag and nurse for healthcare in hospital, check medicine dose and rehabilitation progress. female person, icu and medical support for treatment, assessment and pain management drip - 輸送管 個影片檔及 b 捲影像00:15
tubing on a floating raft - sharp turn of a child on an inflatable ring being pulled by a speed boat on a lake in the summer - 輸送管 個影片檔及 b 捲影像00:07
close up of scientist's hand using droplet fill chemical substance into test tubes in the laboratory - 輸送管 個影片檔及 b 捲影像00:12
bedside care antibiotic iv for infection in emergency room for crisis patient recovery from accident video series - 輸送管 個影片檔及 b 捲影像00:10
zo researcher extracting fluid from jar using pipette / boston, massachusetts, united states - 輸送管 個影片檔及 b 捲影像00:48
ts researcher selecting and removing ice sample from racks of samples in metal tubes / ohio, united states - 輸送管 個影片檔及 b 捲影像00:22醫學樣本
zi researcher removing ice sample in plastic from a metal tube in darkened laboratory / ohio, united states - 輸送管 個影片檔及 b 捲影像00:33醫學樣本
march 9, 2009 young patient in hospital bed hooked up to intravenous drip / kandahar, afghanistan - 輸送管 個影片檔及 b 捲影像00:18
august 22, 1932 montage chemist testing liquor in laboratory / san francisco, california, united states - 輸送管 個影片檔及 b 捲影像00:19加州
august 22, 1932 montage chemist testing liquor in laboratory / san francisco, california, united states - 輸送管 個影片檔及 b 捲影像00:15加州
inventor lee deforest examining a radio tube / hollywood, california, united states - 輸送管 個影片檔及 b 捲影像00:17
inventor lee deforest manufacturing a radio tube / hollywood, california, united states - 輸送管 個影片檔及 b 捲影像00:17
inventor lee deforest at bench manufacturing radio tube / hollywood, california, united states - 輸送管 個影片檔及 b 捲影像00:21
thai army soldiers helping to divert water in an attempt to rescue the youth football team trapped in an underwater cave - 輸送管 個影片檔及 b 捲影像00:47
medium angle, dutch angle of office room. see three stacked small monitors mounted on gray cabinet in foreground. could be used for laboratories, research, or futuristic shot. see test tubes with colorful liquids on desk. wires next to screens spark and f - 輸送管 個影片檔及 b 捲影像00:17
