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| base area; ground area; surface area | |||
| base surface | |||
| floor space; surface area base; foundation plate | |||
|
surface de base : 12 phrases in 8 subjects |
| Aviation | 1 |
| Criminal law | 1 |
| General | 2 |
| Medical | 1 |
| Medical appliances | 1 |
| Metallurgy | 1 |
| Research and development | 2 |
| Transport | 3 |