英文關鍵字
adjusting
appliance
background
banner
battery
central
cold
comfort
control
domestic
economy
electric
energy
female
gas
hand
heat
heater
heating
home
house
increase
knob
man
people
person
plumbing
power
pressure
price
radiator
reduce
regulator
rise
room
save
service
steam
system
technology
temperature
thermal
thermometer
thermostat
utility
valve
warmth
white
winter