英文關鍵字
animation
building
cartoon
chimney
color
colorful
container
cooling
crane
dump
eclectic
electricity
energy
excavator
extraction
facilities
factory
forklift
hydroelectric
icon
illustration
industrial
industry
manufacture
masonry
minerals
motion
oil
plant
pollution
power
product
production
refinery
set
stalk
station
storage
structure
symbol
tower
tracked
transmission
transportation
truck
warehouse
wind
windmill
work