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免費 物理化學 視頻 - 頁面 2

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兩個戴眼鏡的聰明現代孩子在做項目工作
scientist conducting a botanical experiment
animation of data processing on grey background
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animation of chemical formula with icons on white background
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animation of dna over green background with diverse data
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animation of chemical formula over bubbles on blue background
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animation of dna and scientific data processing on blue background
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little boy and girl with face mask using a microscope. kids and science.
animation of medical drawings, mathematical equation and diagram over gradient background
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animation of mathematical equations and dna strand over beakers
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animation of chemical equations over chemical formula
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animation of molecules and mathematical equations over beakers with colorful liquid
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塑膠測量圓柱體在實驗室中
digital animation of chemical structures and equations floating against blue background
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两名儿童正在构建电气机制的近距离拍摄
molecular structures and chemical formulas, scientific research animation over dark background
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同學們在室內用燈泡一起做學校項目
digital animation of dna structure spinning against mathematical equations on green background
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digital composite video of chemical structures and formulas against various equipment in laboratory
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科学家将样品倒入杯子中
animation of scientific data processing over dark background
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animation of dna strands and data processing
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mathematical equations against molecular structures on purple background
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the movement of blue particles in the form of honeycombs inside the sphere. looped animation.
animation of dna strand and data processing
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吸入空氣 進去科學小瓶子
animation of mathematical and scientific data processing over white background
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chemical structures and molecular formulas animation over dark background
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女员工在办公室的黑暗房间里向同事解释图形的幻灯片
science study of the future
animation of fake news text and moleucles over data processing on black background
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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
abstract optics and physics visualization
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abstract 3d geometric background with metallic spheres
兩個聰明的小朋友在做工程學的學校項目
green liquid pouring into beaker
chalkboard during math class.
animation of mathematical equations over beaker and dna strand
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water bubbles rising on transparent background.
dna double helix and molecule models
animation of black structural formulae of chemical compounds on paper
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animation of mathematical equations over caucasian male scientist working in lab
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animation of mathematical equations, globes of digital icons and data processing on black background
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兩個聰明的小朋友在練習電氣工程的興趣
兩個聰明的小朋友在家裡做學校項目
animation of falling snowflakes christmas decorations and greetings over blue background
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animation of chemical formula over thermometer and sea landscape
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animation of data processing and mathematical equations on black background
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animation of macro of molecules and mathematical data processing on purple background
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animation of hexagons and mathematics equations on blue background
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