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