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