英文關鍵字
agricultural
agriculture
barn
belt
bread
cereal
concepts
conveyer
conveyor
corn
crop
dry
dryer
elevator
equipment
factory
farm
farming
flour
food
fresh
garner
grain
granary
granule
harvester
industrial
industry
kernel
machinery
manufacturing
mill
operating
plant
processing
production
raw
roller
rural
seed
speed
storehouse
throe
transporter
warehouse
wheat