Background shot of blackboard with scientific and algebraic formulas and graphs written on it in graphics. Business concept - sketch with schemes and graphs on chalkboard. 3D Graphics cartoon formula
ID: 707313973
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- 大图:3840 × 2160 像素·32.51 cm × 18.29 cm·300dpi·JPG
- 中图:1000 × 562 像素·35.28 cm × 19.83 cm·72dpi·JPG
- 小图:500 × 281 像素·17.64 cm × 9.91 cm·72dpi·JPG