various cu ecu fingers moving slide with dna sample into place on lit stage of an atomic force microscope. - 醫學樣本 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. - 醫學樣本 個影片檔及 b 捲影像00:12
cu dropper taking fluid sample from petri dish with pink fluid / berlin, germany - 醫學樣本 個影片檔及 b 捲影像00:08
cu dropper taking fluid sample from petri dish with pink fluid and putting it in petri dish of clear fluid / berlin, germany - 醫學樣本 個影片檔及 b 捲影像00:10
cu lab technician's hand taking sample with cotton swab from petri dish with pink fluid / berlin, germany - 醫學樣本 個影片檔及 b 捲影像00:11
