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