 |
| |||
| Energieformen f | |||
| primaere Energieformen | |||
| forms of energy: 8 phrases in 4 subjects |
| Environment | 1 |
| General | 5 |
| Mechanic engineering | 1 |
| Optics branch of physics | 1 |
|
| |||
| Energieformen f | |||
| primaere Energieformen | |||
| forms of energy: 8 phrases in 4 subjects |
| Environment | 1 |
| General | 5 |
| Mechanic engineering | 1 |
| Optics branch of physics | 1 |