英文關鍵字
automatic
camera
color
environment
factory
industrial
industry
insulation
liquid
machine
manufacturing
material
mix
modern
molten
move
new
nobody
object
orange
package
plant
plastic
polymer
polystyrene
polythene
process
production
protection
protective
recycle
rigid
rubber
science
soft
space
surface
synthetic
tank
technology
thermoplastic