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