 |
| |||
| table | |||
| 平地层: 49 phrases in 12 subjects |
| Architecture | 1 |
| Communications | 1 |
| Desert science | 3 |
| Drilling | 4 |
| Earth sciences | 3 |
| Ecology | 2 |
| General | 2 |
| Geology | 3 |
| Hydroelectric power stations | 1 |
| Mining | 2 |
| Oil / petroleum | 5 |
| Technology | 22 |
|
| |||
| table | |||
| 平地层: 49 phrases in 12 subjects |
| Architecture | 1 |
| Communications | 1 |
| Desert science | 3 |
| Drilling | 4 |
| Earth sciences | 3 |
| Ecology | 2 |
| General | 2 |
| Geology | 3 |
| Hydroelectric power stations | 1 |
| Mining | 2 |
| Oil / petroleum | 5 |
| Technology | 22 |