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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觀看攝影機
穿著化學防護服和戴著輻射測量裝置的面具的人的肖像
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militar man caresses a soft toy
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fireman wearing a professional gas mask poses amidst swirling smoke, showcasing protective gear for emergency situations
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scientist analyzes vaccine against coronavirus, blue blackground
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在松樹林裡的孩子,臉上戴著黑色防毒面具
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virologist is researching danger virus in laboratory man is dressed protective overall and face mask with respirator developing of bacteriological weapon
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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
man salutes with a gas mask on
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portrait shot worker put off the protective mask and respirator outdoors
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白人研究員穿著防護服,拿著試管,在綠地進行害蟲控制時使用筆記型電腦
法醫攝影師拍照, 望向相機, 前面中間拍攝
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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
scientist team in protective suit preparing tools for analysing virus development
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a man showing stop sign - standing in the empty cinema, wearing white protection costume
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白人年輕人穿著白色個人防護裝備的肖像,站在室外,看著攝影機
穿著個人防護裝備的清潔人員在辦公大樓內清潔窗戶玻璃的正面圖
worried scientists in ppe suit talking behind the glass wall
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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
adult in white hazmat suit wearing face respirator surrounded by purple smoke
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virologist is holding in hands tube with vaccine from covid-19 closeup of human face in laboratory pandemic of coronavirus
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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的田野里敲打玻璃
一名身穿防护服和防毒面具的男子在前景抽烟
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portrait of a man in a protective suit, goggles, gloves and a respirator holds a folder and marks potentially dangerous places . green screen, chroma key. slow motion. close up
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portrait of african american lab scientist in protective suit
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medical worker wearing sweaty protective goggles during coronavirus pandemic
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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
坐在降落掩体中的末日预备者戴着防毒面具并持有机枪
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microbiologist is exploring dangerous bacteria by microscope in laboratory protecting himself by overall and mask with respirator closeup of human face
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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,
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
白人研究人员穿着防护服, 拿着试管和树枝在绿地进行害虫控制
a crime scene investigator collects evidence at a crime scene
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白人研究員身穿白色外套和防護眼鏡的女性在綠色田野中觀看試管
scientist virologist in respirator. man close up look, wearing protective medical mask. concept health safety n1h1 coronavirus epidemic 2019 ncov.
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crime expert is researching chemical in test tube in chemistry laboratory portrait of male scientist with dangerous reagent
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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
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
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
白人研究員穿著防護服,在綠地進行害蟲控制時使用筆記型電腦
male scientist is working with dangerous and toxic chemicals in chemical laboratory using protective dress mask and gloves researching by microscope
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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
穿著防護服的男人探索一個黑暗的房間
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anonymous farmer spraying pesticide on lemon trees while riding tractor
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白人研究者身穿防护服的男子在绿色田野中进行害虫控制时拿着试管和树枝
a crime scene investigator collects evidence at a crime scene
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portrait male in a protective suit, safety glasses, gloves and a respirator looks confidently into the camera and then folds his arms in front of him. green screen, chroma key. slow motion. close up
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disinfection of public area by hazmat team
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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,
scientist in hazmat suit checking gauges
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