extension trestle ladder
相关英语词汇推荐
- combustion space
- avoidable accident
- Cauterization
- ceiling panel heating
- Firemaster CA
- door holding device
- resource officer
- control state
- water officer;water supply officer
- fire-proof fiber;fireproof
- forest farm
- minimum occupant load
- fail-obvious condition
- compressed air tool
- α-AlH3
- fire drencher
- thermal fracture
- data acquisition and processing
- composite explosive
- watering system