機器
arm
base
basis
beam
boom
building site
carrier
cast
casting
cement
chassis
civil engineering
concrete
construction
contractor
crane
edifice
elevated
erector
extended
fountain
hoist
hose
hydraulic
industrial
industry
injection
lifter
machinery
mechanical
mold
mortar
phase
pipe
pipeline
plank
pour
preparation
pump
ramp
ready
site
truck
tube
vehicle
wait
wooden
worker
workplace