英文關鍵字
air
appliance
blow
blowheater
blower
celsius
climate
close
closeup
cold
comfort
comfortable
converter
electric
electrical
electricity
energy
equipment
fan
generator
heat
heater
high
home
hot
industrial
instrument
metal
mobility
model
portable
power
professional
radiator
rotation
rules
safety
security
sequence
technology
temperature
ventilator
warm
warmer
warmth
wheels
wind
winter
yellow