英文關鍵字
blowing
business
cold
concept
concepts
conceptual
cooling
device
electric
element
energy
equipment
extractor
fan
fast
flowing
idea
ideas
industry
loneliness
loopable
matte
mechanics
metal
metallic
one
power
propeller
rack
reflection
refreshment
renewable
rotate
rotating
rotation
round
shivering
sign
source
speed
stream
supercharger
technology
turn
turning
ventilation
ventilator
whiffle