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免費 無菌環境 視頻 - 頁面 2

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兩個穿著個人防護裝置的清潔人員在辦公大樓內清潔樓梯欄位的頂部景色
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
coronavirus covid-19 epidemic in subway car
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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
animation of covid 19 cells flying over globe
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在背景上拍摄绿色三叶草形状的近距离工作室拍摄,以庆祝圣帕特里克日
白人研究者近距离观看 穿着防护服和防护眼镜的男子坐在田野上采集小麦草
animation of 3d covid 19 cells floating over globe on blue background
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animation of covid 19 cells flying over globe
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animation of macro covid-19 cells floating over asian woman putting mask on
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dna and coronavirus bacteria over gradient background.
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白人研究人员穿着白色防护服和防护眼镜的人在绿色田野上散步,用粉末剂喷涂农药
animation of globe and covid 19 cells
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disinfection team in protective suits
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multiple covid-19 cells floating over group of health workers cleaning the office using disinfectant
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研究人員在綠色田野中進行害蟲控制時<unk>坐和握著試管
兩個不辨認的清潔人員穿著個人防護裝置,走在辦公大樓內,拿著清潔產品和破布
microscopic view of cells in a petri dish
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animation of falling covid 19 cells over globe
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animation of virus cells, glitch and viewfinder and blue space
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白人女性和男性研究人员拿着化学物质和杀虫剂的试管,并在绿色领域使用笔记本电脑
green flowing particles with explosive wave effect, 3d rendering.
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doctors in protective wear walking in hospital and speaking
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白人研究人员穿着防护服和防护眼镜的人在绿色田野中行走,
scientist collaboration in laboratory
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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
multiple covid-19 cells floating against rugby ball on grass
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animation of covid 19 virus cells over caucasian male rugby player with ball
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covid, computer and test tube with a man scientist
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turquoise minimalistic mother of pearl texture. modern business video background. 3d texture animation with rotating parts of a circle. spiral surface concept. 3d render of a seamless loop
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water sampling from river into test tube, woman in protective suit, middle shot
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cleaning and disinfection workers in protective gear
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白衣,面具和谷歌的白人研究人员在绿色的田野里看着相机
animation of macro covid-19 cells floating over a 3d human body model on blue background
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animation of covid 19 cells flying over globe
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animation of covid-19 cells against team of workers wearing protective clothes disinfecting office
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兩個穿著個人防護裝置的清潔人員在辦公室內清潔窗戶玻璃的外觀
辦公大樓內一個穿著個人防護裝置的清潔工在清潔窗戶玻璃的正面圖 1
白人研究員,身穿白色防護服,戴防護眼鏡,在綠色田野中行走,同時進行害蟲控制
animation of covid 19 cells floating over globe
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animation of words covid-19 floating over three scientists working in a laboratory
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two tired doctors in protective wear sitting on floor in hallway
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scientist working in a cleanroom environment
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研究員身穿防護服,戴防護眼鏡的女性在綠色田野敲打玻璃
白色防护服和防护眼镜的白人研究人员在绿色田野中行走,同时进行害虫控制
兩個穿著個人防護裝置的清潔人員在辦公大樓內觀看攝影機,同時持有清潔產品和破布
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 shapes, mathematical equations and cells over black background
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白人研究員穿著白色防護服和防護眼鏡的男子在綠色田野中行走,同時進行害蟲控制
animation of macro coronavirus covid-19 cells spreading over woman wearing a face mask
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