機器
environmental
business
collect
conservation
container
disposal
dump
eco
ecological
ecology
environment
equipment
facility
factory
garbage
illustration
industrial
industry
junk
management
manager
manufacture
manufacturing
material
paper
person
plant
plastic
pollution
processing
production
professional
recycle
recycled
recycling
refuse
reuse
rubbish
scrap
separate
sorting
supervising
sustainable
technology
trash
waste
worker
working