| |||
| 组合法 | |||
| 联合法 | |||
| 组合方法; 综合方法 | |||
|
combination method : 25 phrases in 13 subjects |
| Agriculture | 1 |
| Business | 3 |
| Chemistry | 2 |
| Drilling | 1 |
| Earth sciences | 1 |
| Economics | 1 |
| Electricity | 1 |
| Electronics | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 2 |
| Oil / petroleum | 1 |
| Surveying | 1 |
| Technology | 9 |