Red and blue horseshoe magnet or physics magnetic with iron powder magnetic field on white background. Scientific experiment in science class in school.
ID: 602037245
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- 大图:4500 × 3000 像素·38.1 cm × 25.4 cm·300dpi·JPG
- 中图:1000 × 667 像素·35.28 cm × 23.53 cm·72dpi·JPG
- 小图:500 × 333 像素·17.64 cm × 11.75 cm·72dpi·JPG