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