機器
atomic
blue
building
construction
cooling
crane
electric
electricity
energy
engineering
environment
equipment
facility
factory
gas
generation
generator
heat
heavy
high
industrial
industry
inside
interior
manufacturing
metal
modern
nuclear
overhead
pipe
pipeline
piping
plant
pollution
power
powerplant
production
pump
radiation
station
steam
steel
supply
technology
tube
turbine
valve
warming