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