機器
automatic
automation
bag
business
cellophane
chemical
control
conveyor
energy
engine
engineering
equipment
factory
film
food
heavy
industrial
industry
line
machinery
manufactory
manufacture
manufacturing
mechanical
metal
modern
nobody
pack
package
packaging
packing
pipe
plant
plastic
polyethylene
polythene
power
process
processing
production
roll
steel
technology
tool
white
work
workshop