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