laboratory assistent adds reagent into test tubes - assistent stock videos & royalty-free footage00:23
laboratory assistent adds reagent into test tubes - assistent stock videos & royalty-free footage00:18
laboratory assistent adds liquid into test tubes - assistent stock videos & royalty-free footage00:11
laboratory assistent gets the results of dna test - assistent stock videos & royalty-free footage00:26
laboratory assistent gets the results of dna test - assistent stock videos & royalty-free footage00:26
laboratory assistent takes the set of test tubes - assistent stock videos & royalty-free footage00:10
laboratory assistent works with the red reagent for dna test - assistent stock videos & royalty-free footage00:21
laboratory assistent inserts a chip into medical device - assistent stock videos & royalty-free footage00:10
laboratory assistent take a chip from medical device - assistent stock videos & royalty-free footage00:08
mid adult optician man checking the glasses and talking with assistent at the optics - assistent stock videos & royalty-free footage00:15
dentist and dental assistent discussing treatment in front of computer - assistent stock videos & royalty-free footage00:25
dentist and dental assistent discussing treatment - assistent stock videos & royalty-free footage00:17
dentist and dental assistent discussing in front of computer - assistent stock videos & royalty-free footage00:29
patient and dental assistent asking for telephone number at front desk - assistent stock videos & royalty-free footage00:12
expertise male forensic scientist showing a proper way to do a litmus test to a young female colleague so she can gain an experience - assistent stock videos & royalty-free footage00:22
expertised foresnic scientist explainin to his new colleague how to perform a litmus test in their laboratory - assistent stock videos & royalty-free footage00:29
colleague at the forensic laboratory together performing litmus test - assistent stock videos & royalty-free footage00:19
at the forensic laboratory determinated colleagues working on litmus test - assistent stock videos & royalty-free footage00:21
after he warm up the fibers above the bunsen burner forensic observing the reaction, while demonstrating a litmus test to a young colleague - assistent stock videos & royalty-free footage00:31
male forensic observing fibers at the zip lock bag, before he starts with a litmus test with a help of his female colleague - assistent stock videos & royalty-free footage00:19
forensic scientists observing fibers as an evidence so they can start with litmus test at their laboratory - assistent stock videos & royalty-free footage00:33
profesional forensic scientist demonstrating a litmus test to a young female colleague at their forensic laboratory - assistent stock videos & royalty-free footage00:18
forensic scientists preparing their laboratory so they can start with litmus test - assistent stock videos & royalty-free footage00:18
mid adult forensic scientist sharing his knowledge with young female colleague, and explaining her the way he doing a litmus test - assistent stock videos & royalty-free footage00:24
expertise male forensic scientist showing a proper way to do a litmus test to a young female colleague so she can gain an experience - assistent stock videos & royalty-free footage00:24
des dizaines de personnes assistent aux obseques d'un garçon palestinien de quatre ans a khan younes dans la bande de gaza - assistent stock videos & royalty-free footage01:50