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