 |
| |||
| commercialization of sow | |||
| space commercial activities | |||
| space commercialization | |||
|
коммерциализация космоса : 2 短语, 1 学科 |
| 航天 | 2 |
|
| |||
| commercialization of sow | |||
| space commercial activities | |||
| space commercialization | |||
|
коммерциализация космоса : 2 短语, 1 学科 |
| 航天 | 2 |