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