macro needle puncturing and extracting material from cell on high magnification / united states - 顯微鏡 個影片檔及 b 捲影像00:42
the chemical crystallization of edta is like blooming flowers one after another - 顯微鏡 個影片檔及 b 捲影像00:09
microscope, scientist and man research with medical study, science lab and molecule analysis. doctor, biotechnology and professional in hospital with virus monitoring with dna testing and equipment - 顯微鏡 個影片檔及 b 捲影像00:06
extreme close up static - a gloved hand pushes a glass slide under a microscope. - 顯微鏡 個影片檔及 b 捲影像00:11
1976 ms scientist in labaratory looking into microscope / united states / audio - 顯微鏡 個影片檔及 b 捲影像00:08
microscope, scientist and lab research with dna study, science work and analysis at night. doctor, biotechnology and professional man in hospital with virus monitoring with testing and equipment - 顯微鏡 個影片檔及 b 捲影像00:09
female scientist working with microscope in laboratory – medical research, biotechnology, healthcare innovation and scientific experiment concept - 顯微鏡 個影片檔及 b 捲影像00:24體檢
multiracial male scientist examining microscope samples in modern laboratory setting - 顯微鏡 個影片檔及 b 捲影像00:19
microscope, scientist and woman check with research, laboratory and bacteria for forensic study in hospital. science, professional and clinic tech for medical sample and dna analysis of molecule - 顯微鏡 個影片檔及 b 捲影像00:09女人
close-up female neurologist scientist in a white lab coat examining microscope test sample - 顯微鏡 個影片檔及 b 捲影像00:18
science, microscope and black woman in laboratory for medical analysis, research and study. healthcare, biotechnology and scientist with equipment for sample, experiment and vaccine development - 顯微鏡 個影片檔及 b 捲影像00:09
evolution of vascular plants: the ferns - part 1 of 28. describes the evolution of vascular systems in land plants. the highly specialized structures that occur in vascular plants are shown through investigation of the fern. explains the adaptive advantag - 顯微鏡 個影片檔及 b 捲影像00:37
close up hand-held zoom-out - a microscope enlarges details on a piece of evidence. / usa - 顯微鏡 個影片檔及 b 捲影像00:14
ms pan female laboratory technician looking into microscope in cancer research healthcare medicine industry dna sequencing laboratory / vancouver, bc, canada - 顯微鏡 個影片檔及 b 捲影像00:13僅有女人
1923 montage man looking in microscope with his hand moving slide under the lens / united states - 顯微鏡 個影片檔及 b 捲影像00:12
1980 ms zi female scientist conducting lab research with microscope / united states / audio - 顯微鏡 個影片檔及 b 捲影像00:03
volvox aureus under a microscope. white background. captured field width: 2.4 mm. - 顯微鏡 個影片檔及 b 捲影像00:30