機器
act
action
area
assemblage
assembling
assembly
blue
bucket
building
cabin
cargo
cement
concrete
construction
counterweight
crane
detail
elevate
elevator
equipment
erection
facility
heaviest
hoist
installation
jenny
jib
lift
load
main
mechanism
mobile
mounting
operating
outside
raise
set
site
sky
structure
tower
up
urban
winch
work