long wall method
相关英语词汇推荐
- through
- burning time
- alidade
- fast extraction
- tilting cup feeder
- crusher head
- bolt installing equipments
- Residual expansion rate
- internal impedance
- tunneling equipment
- full load running
- single stage separation
- Intermediate product
- cement injection
- hand held drifter
- workings
- worm gear drive
- lump formation
- elastoplastic rock
- drop crushing