distribution of airflow velocity
ratio of pulp velocity and sire velocity
velocity derived from velocity spectrum
adjustable inlet equipment
adjustable inlet guide vane(IGV) of gas turbine
air inlet
空气进口
进气进气口
进气道
空气入口
进气口
入气口
进气
进风口
送风口
气道
进气孔
进口气
风口
进风