https://joy.videvo.net/videvo_files/video/free/2020-04/large_watermarked/200401_Microscope%205_05_preview.mp4 Close Up of Sample Under Microscope 02 Close up of a sample being positioned on the cross table of a laboratory microscope. biochemistrybiologychemistryinstrumentlablaboratorymicroscopepharmapharmaceuticalsresearchsamplesamplessciencescientificscientisttechnician