 |
| |||
| rock burst; rockbursts and bumps | |||
| top failure | |||
| bump; mine percussion; mine shock | |||
| crush burst (mit Zerstörungserscheinungen am Abbaustoß) | |||
| crump; pressure burst; rock bump; rock pressure burst; shock bump; strain burst | |||
| Gebirgsschlag: 9 phrases in 1 subject |
| Mining | 9 |