 |
| |||
| space radio service; space radiocommunication service; space service | |||
| |||
| space services | |||
|
service spatial : 15 短语, 3 学科 |
| 联合国 | 1 |
| 航天 | 1 |
| 通讯 | 13 |
|
| |||
| space radio service; space radiocommunication service; space service | |||
| |||
| space services | |||
|
service spatial : 15 短语, 3 学科 |
| 联合国 | 1 |
| 航天 | 1 |
| 通讯 | 13 |