英文關鍵字
abandoned
aerial
agriculture
agronomy
broken
collapse
crimea
crop
decline
drone
equipment
farm
farmland
field
fields
fly
footage
green
grow
growth
industrial
industry
irrigate
irrigation
land
landscape
line
machine
mechanical
metal
old
outdoor
pipe
plant
plantation
rural
russia
russian
sky
soil
spray
sprayer
sprinkler
supply
system
technology
video
view
water