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免費 科學革命 視頻 - 頁面 2

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national science day
space station orbiting earth
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animation of data processing and chemical formulas over hands of lab worker with samples
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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
animation of scientific data processing over robot's arm
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animation of mathematical equations floating over falling mask on medical equipment
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workman making welding of channel blades of huge fan. production of motor
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workman making welding of channel blades of huge fan. production of motor
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female teacher giving astronomy lesson in school standing at the front of class with projection of the solar system 1
一名非洲裔美國人在街上抗議警察,並與多種族群眾一起大喊大叫
在抗議活動中,人們舉起手,拿著木板和喇<unk>
animation of chemistry data and drawings over globe and sun shining
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animation of spinning globe over forest
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一群年轻的多元文化活动家拿着纸板牌抗议气候变化,
dna structure spinning over broken dollar currency symbol against clouds in blue sky
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animation of scientific data processing over robot's arm on dark background
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audio engineer recording a man with a boom microphone
animation of mathematical formula and shapes moving over a brain on black background
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专注于白人黑客在深夜手持电脑顶部面板, 仔细查看笔记本电脑屏幕和检查数据
两名儿童正在构建电气机制的近距离拍摄
animation of scientific data processing over human brain and dna strand
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animation of moving surveillance camera over cityscape
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白人女性在街上大喊大叫, 拿着"不种族主义"的标志,
animation of mathematical equations and web of connections on black background
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animation of light bulb and scientific formule data processing
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science of the future
兩個學生一起做一個有趣的項目
science day illustration
animation of data processing over globe on black background
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白人研究人员穿着防护服,手持试管,在绿地进行害虫控制时使用笔记本电脑
animation of a patient with an oxygen mask lying in a hospital bed
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animation of data processing and virus warning over crumbled pound sign
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两名学童在做学校项目时近距离拍摄
highly detailed huge spaceship approaching to the earth.
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mathematical equations and chemical structures floating over globe against blue background
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mathematical equations moving against microscope
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mathematical equations and scientific formulas animation over person standing on beach
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computer systems made with ai
animation of mathematical equations over diverse scientist in lab cityscape
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在氣候變化抗議活動中,年輕的男性活動家拿著紙板牌子,近距離觀看攝影機
animation of dna strand spinning over data processing
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animation of scientific data processing over globe and robot's arm
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data processing and dna structure spinning over broken euro currency symbol against sky
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一名年轻的男性活动家在气候变化抗议活动中拿着纸板牌子,同时看着镜头,周围有其他活动家1
animation of mathematical equations and data processing on green background
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兩個聰明的小朋友一起做一個有趣的項目
一群多元文化人士在金融区抗议
a view of the earth and a spaceship. iss is orbiting the earth
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animation of network of connections over scientific data processing
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aerial view of city with traffic and expressway
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