 |
| |||
| период | |||
| 周期，时期: 46 phrases in 13 subjects |
| Astronautics | 1 |
| Automated equipment | 1 |
| Business | 1 |
| Computers | 1 |
| Construction | 1 |
| Electronics | 10 |
| General | 14 |
| Historical | 2 |
| Information technology | 1 |
| Mathematics | 3 |
| Metallurgy | 1 |
| Oil processing plants | 1 |
| Technology | 9 |
|
| |||
| период | |||
| 周期，时期: 46 phrases in 13 subjects |
| Astronautics | 1 |
| Automated equipment | 1 |
| Business | 1 |
| Computers | 1 |
| Construction | 1 |
| Electronics | 10 |
| General | 14 |
| Historical | 2 |
| Information technology | 1 |
| Mathematics | 3 |
| Metallurgy | 1 |
| Oil processing plants | 1 |
| Technology | 9 |