英文關鍵字
action
active
aerial
alternative
arrow
assemble
atmosphere
blade
business
cargo
carry
change
clean
clear
climate
construction
contractor
court
crane
development
distribution
ecology
electricity
emission
empty
energy
engineer
environment
environmental
factory
farm
field
future
gate
generate
generation
generator
glowing
graphic
green
heaven
hell
horizontal
industry
install
investment
landscape
loading
machinery
nature
net
outdoors
pinwheel
pollution
power
production
propeller
protect
renewable
risk
row
silhouette
sky
source
sport
sustainability
technology
texture
tower
track
transportation
truck
turbine
turn
unloading
violent
warehouse
weight
wind
windmill