英文關鍵字
action
agriculture
automated
bag
beet
belt
business
construction
control
crowded
cutting
delicious
engineering
equipment
factory
glucose
granule
heat
indoors
industry
inspecting
job
machine
machinery
manufacturing
merchandise
occupation
packing
part
pipe
plant
production
protective
refinery
silo
stacking
structure
sugar
transportation
turning
vertical