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免費 物質的特性 視頻 - 頁面 5

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vitamin b1(thiamine or aneurine). seamless loop.
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frog eggs held in hands
animation of 3d micro of molecules on grey background
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vertical video close up of wooden chopping board and knife on marble counter in kitchen ready to prepare ingredients for meal
animation of network of connections over red and orange circles
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mathematical equations floating against girl holding chemical structure model in laboratory
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animation of micro of molecules models over grey background
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caucasian woman on the golf course.
animation of falling molecules over seascape
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animation of molecules over data processing on blue
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animation of blue circle and diverse shapes over reagents pouring into glass containers
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研究人员的后视,手套上的女人在绿色的田野里敲打玻璃
研究人员的近距离视图 男人手拿着试管在绿色田野中进行害虫控制
一位戴着面具的白发,中年医生从笔记本上写下医学结果到笔记本电脑上
medical icons and bokeh lights
animation of green hexagons over reagents pouring into lab glasses on blue background
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close up of condensation droplets running down glass bottles of cold beer or soft drink chilling in ice filled bucket against yellow background 3
motion graphic of flat background for world environment day celebration
塑膠測量圓柱體在實驗室中
靠近一個女人用塑膠薄膜包裹一個女孩
visualizes ice, liquid, and vapor transitions
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abstract blue flower with water drops
orange liquid pouring into beaker on chemists table
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animation of dna strand diagrams and bubbles over hands of caucasian woman
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abstract pink and purple spheres
chemical reaction demonstrating color change over time
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pouring liquid into beaker with molecular structure animation in laboratory setting
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高品質的 cgi 呈現<unk>化<unk>分子的科學分子模型,有簡單的黑色標籤和化學符號
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ice block outdoors
caucasian female doctor in safety goggles and mask holding flask with pills.
chemical formulas and molecular structure animation over scientists working in laboratory
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carbon dioxide (co2). seamless loop.
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一位大學科學生物學教授在教室裡用dna雙螺旋模型教學生人類基因組
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laboratory glassware and chemicals
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dna double helix and molecule models
兩個瘋狂的孩子坐在辦公桌旁做項目工作
animation of network of connections with icons and data processing over globe
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animation of dna strand spinning and medical data processing
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melting snow with moss and new growth
oil and water
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vitamin b6 (pyridoxal). seamless loop.
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network connection
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blue and red liquid pouring into beakers
智能儿童<unk>接电路板的近距离拍摄
animation of dna chemical formulas over data processing
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animation of scientific data processing over grid
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transparent molecules background, 3d rendering.
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animation of chemical formulas over liquid pouring onto glass
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close up of bunch of balls on table. vertical looped animation
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animation of white networks floating over cloudy sky at sunset
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