 |
| |||
| settlement crack | |||
| |||
| secondary roof break (Bodenmechanik) | |||
| first break; roof break; weight break | |||
| break (im Hangenden); breaker (an der Versatzseite); main roof break; subsidence break | |||
| |||
| secondary roof-breaks | |||
|
Setzriss : 1 do fraz, 1 tematyki |
| Górnictwo | 1 |