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