機器
assortment
bioecology
biohazard
biomass
business
cellophane
conservation
conveyor
eco
ecology
environmental
factory
garbage
hazard
industrial
industry
junk
landfill
manual
manufacturing
paper
people
picking
plant
plastic
pollution
polyethylene
problem
processing
production
professional
protective
recycle
recycled
recycling
renewal
rubbish
selection
sorted
sorting
sustainable
transporter
trash
triage
waste
waste recycling
worker
working
works