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