英文關鍵字
air
background
bottom
building
clear
closeup
cold
comfort
commercial
condition
conditioner
conditioners
conditioning
cool
cooler
cooling
drops
electric
electrical
electricity
energy
equipment
external
fan
from
heat
home
hot
house
industrial
industry
installation
intake
into
machine
outdoor
outside
power
rooftop
sidewalk
system
temperature
unit
ventilation
view
wall
weather