機器
arm
auto
balance
below
boom
bottom
building site
carriage
civil engineering
construction
crane
cylinder
edifice
erector
foot
force
frame
heavy duty
hoist
hydraulic
hydraulic ram
industrial
industry
ladder
lateral
lorry
low angle
machinery
mobile
mounted
piston
platform
set
side
site
stability
stabilizer
strong
telescopic
tire
tread
truck
tyre
under
undercarriage
vehicle
view
wheel
yellow