single section ladder
相关英语词汇推荐
- roundway driveway
- air duct smoke detector
- safety legislation
- flammability indexing test
- manual reset type fire damper
- damp bulb temperature contrast
- booster reel
- bay
- smoke emission
- eacape system
- water flow alarm valve
- HP fire water pump
- grandstand
- wet water foam
- AIIE;American Institute of Industrial Engineers
- swash partition
- dense sky cover
- floor load
- hydraulic friction loss
- low energy fire