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