機器
aerodynamics
air
air condition
aircraft
airflow
blade
blower
circulation
conditioner
construction
cool
directly
equipment
factory
fan
flow
heat
industrial
industry
jet
machinery
mechanical
mechanism
metal
moment
motor
nobody
part
plant
propeller
rotate
rotation
shaft
steel
structure
system
technology
temperature
truss
turbine
vent
ventilate
ventilation
ventilator
warehouse
wind