Close-up on the hands of a scientist wearing blue rubber gloves and pouring liquid chemicals from glass to glass. Scientific experiment chemical reaction and experimental chemistry concept.
ID: 1197050596
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- 大图:4000 × 2670 像素·33.87 cm × 22.61 cm·300dpi·JPG
- 中图:1000 × 668 像素·35.28 cm × 23.57 cm·72dpi·JPG
- 小图:500 × 334 像素·17.64 cm × 11.78 cm·72dpi·JPG