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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 fire ball
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多種族的年輕人, 戴著圍巾在臉上, 在貧民窟裡跑來跑去攻擊.
closeup 4k waving flag of the nuclear logo in black background
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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
nuclear danger symbols, animation, with alpha channel, loop
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一座标志标志着三英里岛核电站的灾难性<unk>化
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abstract cosmic explosion
白人研究人员穿着防护服和防护眼镜的人在田野里散步,收集小麦草
一名戴着围巾的非洲裔美国男子在街上与多民族群体抗议,手臂举起,大喊大叫
一名警察在街上抗议 covid-19 的示威活动中,看着一群人拿着招牌大喊大叫
白人研究人员穿着白色防护服和防护眼镜在绿色田野里行走,
closeup 4k waving flag of the nuclear logo in yellow background
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radiation sign in yellow and black color circle to ensure safety in 4k video.
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warning radioactive zone in triangle icon isolated on black background in 4k video.
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4k waving flag of the nuclear logo in yellow background
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hazardous waste dumped into the ocean
一名戴着防毒面具的非洲裔美国男子拿着反对种族主义的海报,与其他人在街上示威
radioactive animation green screen
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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
aerial view of a nuclear power plant surrounded by forest
background from rotating gold metal mechanisms. business workflow concept. seamless loop 3d render
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animation of arrows and ionizing radiation hazard symbol over spiral pattern in background
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golden mechanical gears background
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一名警察在街上与一群抗议covid-19的人交谈
工业区的空中景观,工厂在绿色景观周围排放烟雾 2
radiation symbol flashing on transparent background with alpha channel.
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animation of a fire ball
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rows of radioactive chemistry barrels. 4k seamless stock video
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smoking cooling towers at nuclear power plant. aerial view
拉戈斯石油碼頭無人機 04
seamless animation of fire or flow energy from nuclear and biohazard symbols.
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animation of warning sign and digital data processing over red background
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animation of warning text and data processing over glowing mesh
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巴塞罗那的烟花 11
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ramadan mubarak text wish on firework display explosion particles.
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radiation nuclear caution icon sparks particles on black background.
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animation of fire spots of light over mathematical equations and diagrams against black background
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digital composite video of statistics graphs against fire explosion in background
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白人研究員在綠色田野中進行害蟲控制時,身穿防護服的男子拿著試管
nuclear waste barrels
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戴着面具的年轻男女正在进行商务视频通话,并展示带有图表和图表的文件
"非洲裔美國人在街上拿著的標誌"
festival sale text on firework display explosion particles.
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2019 happy new year greeting card text reveal from golden firework & crackers on glitter shiny magic particles sparks night for celebration, wishes, events, message, holiday, festival
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animation of nwarning sign and digital data processing over glowing spots and black background
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girl power text on firework display explosion particles.
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hazardous waste barrels
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2018 happy new year greeting card text reveal from golden firework & crackers on glitter shiny magic particles sparks night for celebration, wishes, events, message, holiday, festival
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animation of fire-like shapes on dark background with dots
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