| |||
| 参考地面 | |||
|
ground reference : 12 phrases in 7 subjects |
| Automobiles | 2 |
| Aviation | 5 |
| Earth sciences | 1 |
| Electric machinery | 1 |
| Geophysics | 1 |
| Nautical | 1 |
| Technology | 1 |
| |||
| 参考地面 | |||
|
ground reference : 12 phrases in 7 subjects |
| Automobiles | 2 |
| Aviation | 5 |
| Earth sciences | 1 |
| Electric machinery | 1 |
| Geophysics | 1 |
| Nautical | 1 |
| Technology | 1 |