sub-reflector
| diffraction
| sub-reflector abbr. | |
| el. | réflecteur secondaire |
| diffraction abbr. | |
| gen. | diffraction |
| chem. | flexion |
| el. acoust. | diffraction acoustique |
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| réflecteur secondaire | |||
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sub-reflector : 6 phrases in 3 subjects |
| Communications | 2 |
| Electronics | 3 |
| Information technology | 1 |