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