 |
| |||
| Tuchfilter n | |||
| Gewebefilter n | |||
| fabric filter: 10 phrases in 6 subjects |
| Coal | 1 |
| Environment | 1 |
| Mining | 1 |
| Natural resourses and wildlife conservation | 5 |
| Nuclear physics | 1 |
| Textile industry | 1 |
|
| |||
| Tuchfilter n | |||
| Gewebefilter n | |||
| fabric filter: 10 phrases in 6 subjects |
| Coal | 1 |
| Environment | 1 |
| Mining | 1 |
| Natural resourses and wildlife conservation | 5 |
| Nuclear physics | 1 |
| Textile industry | 1 |