| |||
| Sonnenenergieanwendung f; Sonnenenergienutzung f | |||
|
solar energy utilization : 3 phrases in 2 subjects |
| Natural resourses and wildlife conservation | 2 |
| Physics | 1 |
| |||
| Sonnenenergieanwendung f; Sonnenenergienutzung f | |||
|
solar energy utilization : 3 phrases in 2 subjects |
| Natural resourses and wildlife conservation | 2 |
| Physics | 1 |