機器
air
airflow
blades
blower
breeze
circle
climate
cold
conditioned
conditioning
cool
cooler
cooling
danger
decay
dirty
engine
environment
extractor
factory
fan
freshener
heat
hot
industrial
industry
mechanical
metal
motor
old
power
protected
protection
rotate
rotating
round
rust
square
steel
turbine
ventilating
ventilation
ventilator
wind