Science Source Feb 2010
EN_90286490_0221
![Science Source Feb 2010](img/medium/arch1/dvd0113/22/EN_90286490_0221.jpg)
SEM of ballpoint pen tip.
2010-02-13
EAST NEWS
Science Source
Ralph C. Eagle, Jr.
5p2986
1,33MB
26cm x 20cm przy 300dpi
BALL, BALLPOINT, EAGLE, ELECTRON, JR, MICROGRAPH, MICROSCOPY, OF, PEN, POINT, RALPH, SCANNING, SCIENCE, SEM, TIP,