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