英文關鍵字
adjust
apparatus
appliance
boiler
boiling
burner
calorific
central
close
closeup
consume
crane
detail
domestic
equipment
fire
flames
fuel
gas
heat
heater
heating
home
hot
house
household
installation
master
metal
modern
open
pipe
pipes
plumbing
structure
system
tap
technology
temperature
thermal
tube
turn
valve
warm
water