alarm speaker
相关英语词汇推荐
- door holding device
- data acquisition and processing
- resource officer
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- watering system
- ceiling panel heating
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- fire drencher
- minimum occupant load
- thermal fracture
- control state
- Firemaster CA
- avoidable accident
- fire-proof fiber;fireproof
- Cauterization
- water officer;water supply officer
- composite explosive