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Blackboard inscribed with scientific formulas and calculations in physics and mathematics. Science and education background.
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Blackboard inscribed with scientific formulas and calculations in physics and mathematics. Science and education background.

编号:1065730331版权:Triff格式:JPG 大图可转换成tiff文件大小约:104.7MB
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JPG大图10325 x 354587.42 cm x 30.01 cm (300dpi)
JPG中图1000 x 34335.28 cm x 12.1 cm (72dpi)
JPG小图500 x 17217.64 cm x 6.07 cm (72dpi)