機器
arm
beam
boom
building site
cement
civil engineering
cloudy
column
concrete
construction
crane
derrick
edifice
elevated
erector
frame
framework
girder
heavy duty
height
high
hoist
hoisting
huge
hydraulic
industrial
industry
joist
lifter
load
looking up
massive
new
part
pillar
placing
project
site
skeleton
sky
stand
structure
tall
telehandler
telescopic
truss
view
work
workplace