altitude trajectory
| prediction error
| altitude trajectory | |
| avia. | 高空弹道 |
| prediction error | |
| earth.sc. | 预报误差 |
| el. | 预测差错 |
| oil | 预测误差 |
| |||
| 高空弹道 | |||
|
altitude trajectory : 4 phrases in 2 subjects |
| Aviation | 3 |
| Space | 1 |