機器
environmental
bin
can
car
city
clean
collection
container
disposal
dispose
dump
ecology
environment
equipment
garbage
green
icon
illustration
industrial
industry
isolated
junk
line
linear
outline
plastic
recycle
recycling
refuse
rubbish
sanitation
scrap
service
sign
street
transport
transportation
trash
truck
urban
vehicle
waste
wheel
white
work
worker