| |||
| 系统堆栈 | |||
|
system stack : 31 phrases in 9 subjects |
| Animal husbandry | 1 |
| Architecture | 2 |
| Drilling | 3 |
| Geophysics | 1 |
| Information technology | 3 |
| Metallurgy | 2 |
| Oil / petroleum | 2 |
| Space | 1 |
| Technology | 16 |
| |||
| 系统堆栈 | |||
|
system stack : 31 phrases in 9 subjects |
| Animal husbandry | 1 |
| Architecture | 2 |
| Drilling | 3 |
| Geophysics | 1 |
| Information technology | 3 |
| Metallurgy | 2 |
| Oil / petroleum | 2 |
| Space | 1 |
| Technology | 16 |