機器
architecture
automatic
barrel
boiler
branch
business
chemical
construction
corner
electric
energy
engineering
environment
equipment
factory
fuel
gas
heat
industrial
industry
insulation
iron
manufacturing
metal
metallic
modern
node
oil
pipe
pipes
plant
plumbing
pollution
power
production
pump
refinery
sensors
steam
steel
storage
structure
system
technical
technology
treatment
tube
valve
water