機器
architecture
automatic
boiler
building
business
construction
control
distribution
electric
energy
engine
engineering
equipment
factory
gas
heat
hot
industrial
industry
infrastructure
installation
insulation
interior
line
machinery
metal
modern
new
pipe
pipeline
piping
plant
plumbing
power
pressure
production
pump
room
sewer
station
steel
system
technology
treatment
tube
utility
valve
water
work