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vía de superficie |
by surface : 30 phrases in 13 subjects |
Agriculture | 5 |
Chemistry | 1 |
Communications | 2 |
Electronics | 1 |
Industry | 2 |
Law | 2 |
Life sciences | 1 |
Materials science | 1 |
Metallurgy | 7 |
Soil science | 1 |
Technology | 3 |
Transport | 2 |
Water resources | 2 |