filtraciones : 71 phrases in 14 subjects |
Agriculture | 13 |
Chemistry | 6 |
Communications | 1 |
Construction | 3 |
Earth sciences | 9 |
Education | 1 |
Environment | 21 |
Health care | 2 |
Industry | 3 |
Life sciences | 6 |
Mathematics | 1 |
Metallurgy | 2 |
Natural sciences | 1 |
Waste management | 2 |