英文關鍵字
vertical
reels
shot
moving
technology
product
load
indoors
heap
food
agricultural
drying
white
crumbly
vapor
silo
rotate
rollers
manufacture
hot
belt
fumes
agriculture
beet
building
conveyor
engineering
equipment
factory
industrial
industry
job
machinery
mechanical
plant
processing
production
sugar
transportation
moves
slips
movement
cycle
shop