Color water in test tube and beaker near microscope at laboratory.Copy space on white science lab.
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- 大图:5112 × 2556 像素·43.28 cm × 21.64 cm·300dpi·JPG
- 中图:1000 × 500 像素·35.28 cm × 17.64 cm·72dpi·JPG
- 小图:500 × 250 像素·17.64 cm × 8.82 cm·72dpi·JPG