英文關鍵字
assembly
autumn
background
beam
beams
beautiful
big
building
cargo
carry
clouds
construction
crane
dawn
engineering
equipment
evening
exterior
factory
heavy
hoist
hoisting
hook
hydraulic
industrial
industry
joist
landscape
lifting
load
machine
metal
morning
motion
mount
orange
outside
overlap
panorama
piles
plant
posts
raises
red
site
sky
steel
vehicle
work
worker