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désagrégation: 39 phrases in 17 subjects |
Agriculture | 2 |
Astronomy | 4 |
Building structures | 1 |
Cement | 1 |
Coal | 1 |
Communications | 1 |
Construction | 6 |
Environment | 2 |
General | 3 |
Geology | 2 |
Hydrology | 1 |
Life sciences | 1 |
Medical | 5 |
Metallurgy | 1 |
Natural resourses and wildlife conservation | 4 |
Technology | 2 |
Transport | 2 |