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