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