 |
| |||
| 資源開発 (usu. natural resources, しげんかいはつ) | |||
|
resources exploitation : 2 do fraz, 2 tematyki |
| Biznes | 1 |
| Technika i technologia | 1 |
|
| |||
| 資源開発 (usu. natural resources, しげんかいはつ) | |||
|
resources exploitation : 2 do fraz, 2 tematyki |
| Biznes | 1 |
| Technika i technologia | 1 |