science chemistry biology medicine and people concept - close up of young female scientist holding petri dish with powder in clinical laboratory
ID: 255040873
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- 大图:3200 × 2504 像素·27.09 cm × 21.2 cm·300dpi·JPG
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- 小图:500 × 391 像素·17.64 cm × 13.79 cm·72dpi·JPG