Vector illustration with icons on the topic of knowledge. Design for banner, poster or print.

Research and development concept. Graduate cap, document, information icon, gears, idea in bulb shape, bar chart.

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图像库的Research and development concept. Graduate cap, document, information icon, gears, idea in bulb shape, bar chart. 图像 Image 121826396.

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Research And Development Concept. Graduate Cap, Document, Information Icon, Gears, Idea In Bulb Shape, Bar Chart. 免版税剪贴画，向量插图和库存图片. Image 121826396.

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Research and development concept. Graduate cap, document, information icon, gears, idea in bulb shape, bar chart.

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