英文關鍵字
animated
animation
blade
eco
ecology
electric
electricity
energy
environment
flat
footage
future
generate
generator
holland
innovation
intro
level
logo
machine
mill
motion
nature
netherlands
oil
opening
power
propeller
pump
renewable
rig
rotate
rotating
rotation
sea
silhouette
sustainable
technology
three
tower
turbine
under
video
water
wheel
wind
windmill