 |
| impureza: 117 phrases in 16 subjects |
| Agriculture | 1 |
| Chemistry | 19 |
| Communications | 1 |
| Earth sciences | 4 |
| Electronics | 53 |
| Environment | 6 |
| General | 4 |
| Health care | 5 |
| Industry | 8 |
| Information technology | 1 |
| Medical | 1 |
| Metallurgy | 3 |
| Municipal planning | 4 |
| Piezoelectric crystals | 1 |
| Semiconductors | 4 |
| Technology | 2 |