| |||
| single-grain structure; single grain structure | |||
| |||
| elementary structures | |||
|
structure elementaire : 3 Phrasen in 3 Thematiken |
| Computer | 1 |
| Elektrizitätserzeugung | 1 |
| Natürliche Ressourcen und Artenschutz | 1 |
| |||
| single-grain structure; single grain structure | |||
| |||
| elementary structures | |||
|
structure elementaire : 3 Phrasen in 3 Thematiken |
| Computer | 1 |
| Elektrizitätserzeugung | 1 |
| Natürliche Ressourcen und Artenschutz | 1 |