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| absorption cross-section; effective area | |||
| measured surface; effective surface | |||
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| face count | |||
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| partial effective area of an antenna for a given polarization and direction | |||
|
surface effective : 15 phrases, 7 sujets |
| Communications | 2 |
| Électronique | 2 |
| Génie mécanique | 1 |
| Physique nucléaire | 1 |
| Sciences de la vie | 4 |
| Semi-conducteurs | 1 |
| Technologie | 4 |