 |
| |||
| mechanisches Sortieren | |||
| mechanische Trennung | |||
| mechanical separation: 2 phrases in 2 subjects |
| Natural resourses and wildlife conservation | 1 |
| Nuclear physics | 1 |
|
| |||
| mechanisches Sortieren | |||
| mechanische Trennung | |||
| mechanical separation: 2 phrases in 2 subjects |
| Natural resourses and wildlife conservation | 1 |
| Nuclear physics | 1 |