英文關鍵字
agriculture
animal
apparatus
automatic
black
bovine
breast
business
cattle
clean
commercial
country
cow
dairy
dairyman
detail
equipment
facility
factory
farm
farmer
farming
food
industrial
industry
machine
meat
milk
pipe
pressure
process
production
ranch
rural
steel
storage
suction
system
tank
teat
technology
tube
udder
white
work