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免費 學習科學 視頻 - 頁面 2

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animation of ecology icons over caucasian male scientists repairing
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兩個孩子白天在家裡做電子學校的項目
兩個孩子一起做一個有趣的項目
两名儿童正在构建电气机制的近距离拍摄
animation of a group of happy schoolchildren using microscope in science class
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little boy and girl wearing face mask with laboratory glassware. kids and science.
animation of dna with medical data processing and information with scientist working behind
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science study of the future
a young african american student examines chemical reaction in a classroom
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mathematical equations floating against girl using microscope
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animation of dna strand and scientific data processing over diverse scientists in laboratory
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science study of the future
students in a science lab looking at specimens under microscopes
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girl drips blue liquid with pipette at tutors support in lab
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兩個聰明的小朋友一起做一個有趣的項目
using pipette in science experiment, girl surrounded by chemical structure animation
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animation of mathematical equations over caucasian male scientist working in lab
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animation of dna strand spinning with calculations on female lab worker using laptop in background.
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兩個學生在做工程學的學校項目
animation of mathematical equations over caucasian male scientist in lab
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medical workers analyzing patient heartbeat
animation of mathematical equations over biracial boy using microscope
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一個小男孩正在建造一個機械人
animation of a patient with an oxygen mask lying in a hospital bed
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student taking notes in a chemistry lab
girl drips red paint into clear liquid during chemical test
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boy mixing chemicals 4k
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animation of scientific data processing over diverse schollchildren in laboratory
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戴著虛擬現實眼鏡的笑容年輕人
man pours catalyst girl student wondered of rising up drops
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animation of mathematical equations over biracial female scientist pouring chemical in a beaker
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animation of mathematical formulas over schoolboy using vr headset
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animation of scientific data processing over diverse students in laboratory
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science teacher, children and chemistry class
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animation of mathematical equations over diverse schoolchildren during chemistry lesson
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conducting science experiment, child with safety goggles using pipette over chemical formulas animat
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little girls interested in science
scientist, man and data analysis
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兩個同學在晚上一起做學校項目
little boy with laboratory glassware and a microscope. kids and science.
conducting science experiment, child and teacher with lab equipment animation
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女教師幫助對科學與技術有興趣的小男孩和女孩建造機器人
scientists mixing chemicals on a test tube
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戴着面具的小女孩们正在建造机器人
animation of mathematical formulae over schoolgirl using microscope
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laboratory research concept. group of scientists discussing microscope research
兩個年輕的同學一起做學校項目
兩個聰明的小朋友在做工程學的學校項目
animation of mathematical equations over biracial female student with models in classroom
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students in a science lab
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