機器
activity
architecture
big
block
blue
build
building
business
cable
city
cloud
concrete
construction
crane
development
engineering
equipment
estate
exterior
growth
heavy
high
hoist
hoisting
house
industrial
industry
iron
lift
metal
new
object
office
outdoor
project
rope
site
sky
skyscraper
steel
structure
tall
technology
tool
tower
urban
white
work
yellow