英文關鍵字
agriculture
animal
automatic
cattle
closeup
commercial
cow
dairy
detail
equipment
farm
farming
industrial
industry
machine
milk
pipe
pressure
process
rural
steel
suction
teat
technology
udder
white
英文關鍵字
agriculture
animal
automatic
cattle
closeup
commercial
cow
dairy
detail
equipment
farm
farming
industrial
industry
machine
milk
pipe
pressure
process
rural
steel
suction
teat
technology
udder
white