英文關鍵字
architecture
balance
blue
build
business
cable
cement
city
concrete
construction
container
crane
day
development
drum
engineering
equipment
exterior
hawser
high
hoisting
house
industrial
industry
iron
lift
lifting
load
machine
machinery
material
metal
mover
moving
nobody
site
sky
steel
structure
tall
technology
tower
transportation
vertical
windlass
work