 |
| |||
| frame of reference; reference frame | |||
| 参考架: 12 phrases in 7 subjects |
| Air defense | 1 |
| Aviation | 1 |
| Earth sciences | 2 |
| Oil / petroleum | 1 |
| Space | 1 |
| Sports | 1 |
| Technology | 5 |
|
| |||
| frame of reference; reference frame | |||
| 参考架: 12 phrases in 7 subjects |
| Air defense | 1 |
| Aviation | 1 |
| Earth sciences | 2 |
| Oil / petroleum | 1 |
| Space | 1 |
| Sports | 1 |
| Technology | 5 |