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