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