一本打开的书籍静置在青蓝色背景上。在其上方，漂浮着一个程式化的橙色原子模型，电子被描绘成围绕中心原子核的轨道。该插图象征着知识与科学的交汇，原子结构暗示着物理或化学领域的教育主题 库存例证 一本打开的书籍静置在青蓝色背景上。在其上方，漂浮着一个程式化的橙色原子模型，电子被描绘成围绕中心原子核的轨道。该插图象征着知识与科学的交汇，原子结构暗示着物理或化学领域的教育主题
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A rectangular piece of deep fried food with crispy texture and visible milk inside the paper wrap surface is covered illustration 向量例证 a rectangular piece of deep fried food with crispy texture and visible milk inside the paper wrap surface is covered illustration
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