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