 |
| 恒 定的: 33 phrases in 15 subjects |
| Animal husbandry | 2 |
| Aviation | 2 |
| Cryptography | 2 |
| Desert science | 1 |
| Electronics | 1 |
| General | 13 |
| Genetics | 1 |
| Hydroelectric power stations | 2 |
| Information technology | 1 |
| Mining | 1 |
| Refrigeration | 2 |
| Steel production | 1 |
| Technology | 2 |
| Textile industry | 1 |
| Wind Energy | 1 |