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