birdcage scaffold
A temporary platform, which supports workers and materials, and has more than two rows of upright posts and cross-pieces.
热门单词
- air drill
- air entraining
- air-entraining admixture
- air-entraining agent
- air-entraining hydraulic cement
- air entrainment
- air exfiltration
- air filter
- air filtration
- airflow vane
- air-exhaust ventilator
- air flue
- airfoil vane
- air-fuel ratio
- air grating
- air gap
- air grille
- air gun
- air hammer, pneumatic hammer
- air-handling system
- air-handling unit; packaged fan equipment
