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