英文關鍵字
adjustment
aluminum
automatic
boiler
burn
burning
cock
column
combustion
comfort
control
counter
device
display
domestic
electric
electrical
energy
equipment
fire
front
gas
geyser
heat
heater
home
hot
house
household
indicator
industry
installation
metallic
object
panel
pipes
regulator
service
system
tank
technology
temperature
thermal
view
warm
water
white