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