機器
architecture
automation
background
blue
box
building
business
commercial
construction
control
conveyor
energy
engineering
environment
equipment
factory
food
group
indoors
industrial
industry
interior
job
labor
light
line
machinery
manufacture
manufacturing
mechanical
metal
modern
people
person
pipes
plant
pollution
power
production
room
safety
steel
storage
structure
sun
sunset
technology
transportation
warehouse
work
worker