Electronic engineering experiment. Cropped shot of technician testing new invention at lab.
ID: 1428093434
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- 大图:3878 × 1451 像素·32.83 cm × 12.29 cm·300dpi·JPG
- 中图:1000 × 374 像素·35.28 cm × 13.19 cm·72dpi·JPG
- 小图:500 × 187 像素·17.64 cm × 6.6 cm·72dpi·JPG