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