 |
| |||
| composition unit | |||
| 综合单位: 16 phrases in 8 subjects |
| Earth sciences | 1 |
| Economy | 1 |
| Electronics | 3 |
| Hydroelectric power stations | 3 |
| Hydrology | 1 |
| International trade | 3 |
| Oil / petroleum | 1 |
| Technology | 3 |
|
| |||
| composition unit | |||
| 综合单位: 16 phrases in 8 subjects |
| Earth sciences | 1 |
| Economy | 1 |
| Electronics | 3 |
| Hydroelectric power stations | 3 |
| Hydrology | 1 |
| International trade | 3 |
| Oil / petroleum | 1 |
| Technology | 3 |