 |
|
válvula : 1098 phrases in 28 subjects |
| Agriculture | 37 |
| Astronautics | 3 |
| Chemistry | 62 |
| Coal | 5 |
| Commerce | 2 |
| Communications | 7 |
| Construction | 2 |
| Earth sciences | 138 |
| Ecology | 1 |
| Electronics | 50 |
| Energy industry | 7 |
| Environment | 5 |
| Forestry | 2 |
| General | 13 |
| Hobbies and pastimes | 2 |
| Industry | 25 |
| Information technology | 4 |
| Labor law | 5 |
| Life sciences | 1 |
| Materials science | 27 |
| Mechanic engineering | 501 |
| Medical | 33 |
| Metallurgy | 30 |
| Municipal planning | 1 |
| Natural sciences | 6 |
| Nuclear physics | 1 |
| Technology | 3 |
| Transport | 125 |