機器
hawser
architecture
blue
build
building
business
cable
cement
concrete
construction
container
crane
derrick
development
drum
engineering
fog
girder
hoist
hoisting
hook
house
housing
industrial
industry
iron
job
lift
lifting
load
machinery
material
mixer
mixing
mortar
mover
moving
rope
severe
site
sky
steel
tool
tower
transportation
up
winter
wire