機器
appliance
boiler
boilerhouse
building
circulation
construction
control
electric
energy
engineering
equipment
faucet
gas
heat
heater
heating
home
hot
house
indicator
industrial
industry
insulation
interior
maintenance
manometer
measuring
metal
modern
pipe
pipeline
plumber
plumbing
power
pressure
pump
room
service
steel
system
technology
temperature
thermostat
tube
valve
water
work