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