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