 |
| |||
| stage by stage system | |||
| staged system | |||
| ступенчатая система: 23 phrases in 14 subjects |
| Astronautics | 1 |
| Automobiles | 1 |
| Communications | 1 |
| Construction | 3 |
| Economy | 1 |
| Energy industry | 5 |
| General | 1 |
| Geology | 1 |
| Metallurgy | 1 |
| Oil and gas | 1 |
| Programming | 3 |
| Statistics | 1 |
| Technology | 2 |
| Telecommunications | 1 |