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