Science Source Feb 2010
EN_90286490_0022
![Science Source Feb 2010](img/medium/arch1/dvd0113/18/EN_90286490_0022.jpg)
SEM of coarse sandpaper with sharp carborundum particles attached to the background. Bar: 500 micrometers.
2010-02-13
EAST NEWS
Science Source
Scimat
2u6719
1,8MB
26cm x 19cm by 300dpi
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