 |
| |||
| 迁移率 | |||
|
migration frequency : 8 phrases in 5 subjects |
| Aviation | 2 |
| Earth sciences | 1 |
| Geophysics | 1 |
| Oil / petroleum | 3 |
| Space | 1 |
|
| |||
| 迁移率 | |||
|
migration frequency : 8 phrases in 5 subjects |
| Aviation | 2 |
| Earth sciences | 1 |
| Geophysics | 1 |
| Oil / petroleum | 3 |
| Space | 1 |