機器
anchor
background
black
building
cargo
chain
circuit
colour
construction
crane
development
dock
duty
elevation
engineering
equipment
gravity
gray
hang
heavy
hold
hook
industrial
industry
iron
isolated
length
lift
lifting
link
lock
machinery
metal
object
plummet
pulley
rise
set
stainless
steel
strength
strong
tool
upgrade
upturn
weight
white
winch
windlass
work