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