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demonstrating chemical reactions with sucrose and solutions
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科学家在实验室中记录结果
laboratory experiment with petri dishes
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hand blending berries of blueberries on bottom of glass. preparation of cocktail
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test tubes with samples in a rack 4k
medical workers analyzing patient heartbeat
experiment showcasing sodium acetate crystallization process
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白人研究員身穿白色外套和防護眼鏡的女性在綠色田野中觀看試管
scientist in lab coat mixing chemicals in a glass bottle in a lab
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scientist hand writing on test beakers
蜂蜜的化學實驗室測試, 蜂蜜品質測試, 有害物質和殺蟲劑測試, 有機蜂蜜測試,蜂蜜養殖業務
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color change experiment with butterfly pea flower extract
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塑膠測量圓柱體在實驗室中
chemical reaction demonstration with iodine and starch
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近距離化學品, 蒸<unk>滴入杯子中
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laboratory beakers with data and structural formula of chemical compounds in the foreground
戴著防護服和呼吸器的科學家在試管中檢查一種藍色物質
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demonstrating ph changes with butterfly pea flower
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woman doing control at brewery
laboratory worker preparing experiment at lab
student taking notes in a chemistry lab
研究員身穿防護服,戴防護眼鏡的女性在綠色田野敲打玻璃
chemist scientist looking microscope slide
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
chemical reaction changes color in laboratory setting
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plant seedlings growing under test laboratory glassware. germinated plant sprouts
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吸入空氣 進去科學小瓶子
laboratory beaker with data and structural formula of chemical compounds in the foreground
scientist using a scanning electron microscope (sem)
laboratory research concept. group of scientists discussing microscope research
plant seedlings growing under test laboratory glassware. germinated plant sprouts
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lab process showing sodium acetate crystallization
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pouring liquid into glasses for color change experiment
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chemical reaction demonstration with color change
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白人研究員穿著防護服的男子,在綠色田野中進行害蟲控制時,握著試管
vitamin c and iodine experiment
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demonstrating sodium acetate crystallization in a lab setting
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technology scientist conducting modern research in lab setting with test tubes and equipment
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demonstrating ph changes with butterfly pea flower
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pouring liquid into glasses for color change
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demonstrating chemical reactions with sucrose and solutions
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scientist hand warming tweezers. science laboratory research
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scientist hand warming tweezers. science laboratory research
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observing sodium acetate crystallization in a lab setting
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chemical reaction demonstration with color change
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hands manipulating test tube clamp in laboratory setting
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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
demonstrating ph changes with butterfly pea flower
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科学家将样品倒入杯子中
male scientist removing medical vials from centrifuge 4k
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