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