機器
architectural
architecture
blue
build
business
busy
cement
city
concrete
construct
construction
contractor
cramp
crane
density
development
economic
economy
engineering
equipment
ferroconcrete
huge
industry
iron
kong
new
noisy
outdoor
project
property
real estate
reinforced
reinforcing
site
sky
steel
structure
system
technology
truck
unfinished
urban
wall
wood
work
worker
workmen
workplace
worksite