blasting powder;black powder
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- resource officer
- data acquisition and processing
- forest farm
- minimum occupant load
- fail-obvious condition
- combustion space
- door holding device
- Firemaster CA
- compressed air tool
- water officer;water supply officer
- composite explosive
- avoidable accident
- control state
- α-AlH3
- watering system
- fire drencher
- fire-proof fiber;fireproof
- Cauterization
- thermal fracture
- ceiling panel heating