機器
architecture
area
beam
big
blue
bridge
build
building
business
cables
cement
city
column
concrete
construction
crane
deck
design
engineering
equipment
form
frame
heavy
high
highrise
hoist
industrial
industry
lifting
machinery
management
material
mechanization
modern
net
pier
progress
project
pylon
rails
reinforced
reinforcement
safety
site
structure
support
tall
tower
work