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