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免費 生物檢查 視頻 - 頁面 3

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woman putting paper inside of an envelope
analytical chemists researching together
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science, research and woman with microscope
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closeup of a blood sample on glass plate under
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scientist, blood sample and microscope for covid
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glass, liquid or scientist writing in laboratory
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female scientist using microscope in laboratory
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male scientist using microscope in laboratory 4k
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醫生用注射器填充瓶子時的近距離手
interpreting the world through science
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女醫生用疫苗填充注射器的肖像
塑膠測量圓柱體在實驗室中
man in protective mask and sterility suit
scientist injecting chemicals in vaccine rack 4k
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medical professional working at a hospital
close-up change of microscope magnification in a laboratory
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doctor adjusting ophthalmoscope
scientist looking through a microscope in a laboratory
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animation of white circles over female doctor working in lab
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scientist examining blood sample in laboratory
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一对戴着口罩的医生在看平板电脑上的结果时聊天 2
护士和女医生拿着covid-19疫苗的注射器的肖像
doctor looking dna molecule on computer
白人女性和男性研究人员拿着化学物质和杀虫剂的试管,并在绿色领域使用笔记本电脑
research, magnifying glass
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two technicians making notes in protective gloves
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filter hole cutting machine for h95 face masks
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chef with metal tongs in professional kitchen
animation of chemical formulas over african american male lab worker with samples
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close-up shot of microscope at laboratory. researchers working in lab with microscope. examining of test sample under the microscope in laboratory. high quality 4k footage
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woman at doctor's office
scientists using large fridge in lab
crime scene site police photographer forensic scientist murder collect evidence
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beautiful ophthalmologist working with computer in clinic
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tired doctor sleeping at medical workplace. medical specialist tired at work
test tubes with samples in a rack 4k
medical professional in ppe taking notes
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mathematical equations floating against health worker wearing face mask working at laboratory
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scientist, woman with microscope slide
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elderly doctor in protective uniform using microscope
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adjusting the microscope with the rotary potentiometer. detail
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medical professional using touchscreen device
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scientist looking into a microscope
the smallest detail explains the big picture
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scientist in laboratory, team
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pharmacists working indoors
female lab research worker in ppe looking through microscope and recording results on laptop
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cleaner wiping indoor
坐在醫院內的老退休男性病人, 聽中年經驗豐富的專業醫生在諮詢上展示和討論疫苗的肖像1
scientist in protection suit looking through a microscope
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