機器
art
belt
bio
city
conveyor
disposal
dump
eco
environment
equipment
facility
factory
garbage
grapple
heavy
hydraulic
illustration
industrial
isolated
junk
landfill
lift
litter
machinery
management
municipal
plant
processing
recycling
refuse
rubbish
scrap
segregation
separation
service
set
sorting
special
sustainable
technology
tractor
trash
treatment
urban
utility
utilization
waste
work