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免費 實驗室用品 視頻

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实验室技术人员进行尿液检测 8
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test tubes with samples in a rack 4k
inside a chemistry lab experimenting with eggs
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various clear beakers and cylinders on a white surface
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laboratory experiment with petri dishes
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科学家在实验室中使用 pipette 的近距离拍摄 1
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laboratory glassware
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將樣本注入試管中
various clear beakers rotating on a platform
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laboratory chemicals in containers
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orbital shaker for mixing, shaking, blending biological samples in glass vials
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laboratory experiment with colored solutions
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trail and error natural resources medical specimen tests
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student taking notes in a chemistry lab
chemical instruments with biotechnology concept, 3d rendering.
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lab glassware on shelves
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close-up shot of empty clean glasses in a bar
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chemist scientist looking microscope slide
laboratory beaker with data and structural formula of chemical compounds in the foreground
实验室桌子里充满了试管和透明液体的杯子 - - 向右运送
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实验室设备:注射器和药物试管和瓶子在黑色背景上旋转 6
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laboratory beakers with data and structural formula of chemical compounds in the foreground
laboratory sterilization procedure
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student performing a chemistry experiment in a laboratory
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pouring water into beaker with dry ice
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不可辨认的医生手的细节 组装耳镜
microscope focused on plant samples in a laboratory setting
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实验室技术人员进行尿液检测 1
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chemical reaction demonstrating color change in solution
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chemical experiment in laboratory
白人研究員女士在綠色田野中進行害蟲控制時,戴著防護服拿著試管
科学家在实验室中记录结果
scientist hand warming tweezers. science laboratory research
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scientist hand warming tweezers. science laboratory research
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吸入空氣 進去科學小瓶子
教育和covid-19概念 第一部分
laboratory worker preparing experiment at lab
在實驗室中使用 pipette 的實驗室科學家
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blue and red liquid pouring into beakers
vitamin c and iodine experiment
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video of close up of glass laboratory beakers and dishes with copy space on white background
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redheaded doctor in front of camera on gray background.
lab experiment with test tubes and blue liquid
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close up view of scientist hand using microscope in laboratory
man drinking and taking pills
玻璃实验室用品坐在柜台上 1
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stomatolog hand holding medical tweezers
scientist hand writing on test beakers
塑膠測量圓柱體在實驗室中
实验室技术人员进行尿液检测 7
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