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