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