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