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免費 學校實驗室 視頻

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empty classroom.
students and their teacher conduct a science experiment in a laboratory
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同學們在室內用燈泡一起做學校項目
high school chemistry class
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in a deliberate slow-motion display, a science laboratory teems with activity as glass beakers undergo captivating reactions, spotlighting the precision of chemical investigations
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science, classroom and education with empty room
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pupils doing science together in class
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modern science classroom with microscopes
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portrait of schoolgirl standing with arms crossed in laboratory
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little boy and girl with face mask using a microscope. kids and science.
students learn biology in a science lab
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female high school tutor teaching students in uniforms sitting at work benches in science class
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science, classroom and learning with empty room
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兩個中學學生一起做一個項目
兩個孩子在做工程學的學校項目
kids and science. little boy and girl with face mask using a microscope.
兩個瘋狂的孩子坐在辦公桌旁做項目工作
students in a biology lab learning about bacteria.
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student taking notes in a chemistry lab
colorful chemical reaction science experiment
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students in a biology lab
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多種族兒童坐在電腦顯示器前,在鍵盤上打字,而男性老師幫助他們
戴着面具的小女孩们正在建造机器人
兩個戴眼鏡的聰明現代孩子在做項目工作
students in a science lab using microscopes
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a row of transparent liquid fluids in the laboratory
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教師和學生在計算機科學課堂上享受樂趣
一位金发女孩在键盘上<unk>,而同学们在屏幕上看和说话
student learning in a science lab
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video of happy biracial boy with microscope during lesson
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kids doing a chemical experiment in laboratory
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diverse female teacher and happy schoolchildren having science class in school lab
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一個女孩<unk>接,一個男孩用螺旋<unk>做教育項目
in a deliberate slow-motion sweep, a science laboratory reveals a blackboard laden with intricate equations, juxtaposed against glass beakers, encapsulating the union of theory and practice
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laboratory fume hood with equipment
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science, research and teachers with children
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戴着面具的小女孩建造机器人 1
坐在桌子旁的女孩,驚訝地看著鍵盤,然後打字
documents, meeting or empty office
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多種族兒童用虛擬現實耳機玩樂
科学家在实验室中记录结果
animation of chemistry symbols over empty clasroom
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mental arithmetic lesson
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students in a science lab looking at specimens under microscopes
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多民族兒童學習計算機科學
laboratory research concept. group of scientists discussing microscope research
children are learning and doing science experiments in the classroom. two little sisters playing science experiment for home schooling. easy and fun science experiments for kids at home.
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animation of data processing with ecology icons over diverse scientists taking sample
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animation of a group of happy schoolchildren using microscope in science class
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in school, in a classroom, a young asian student examines chemical reactions
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