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