Drawings components and design tools on the table of an engineer or designer illustrating research and development process in engineering and science.
ID: 431826154
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- 大图:5099 × 3398 像素·43.17 cm × 28.77 cm·300dpi·JPG
- 中图:1000 × 666 像素·35.28 cm × 23.5 cm·72dpi·JPG
- 小图:500 × 333 像素·17.64 cm × 11.75 cm·72dpi·JPG