常見例句雙語例句Open vent needle valve and bleed air from hose. Then close vent valve.開啟排氣針形閥，并從軟管排放空氣。然后關閉排氣閥。On the left side of the isolation valve, the APU bleed air duct joins the left side crossover duct;在隔離活門的左邊，APU引氣管道立連接著左交輸管道；BLEED VALVE, A valve in the pneumatic system for air supply from the engine or auxiliary power unit to the pneumatic manifold.引氣活門， 氣源系統(tǒng)內(nèi)， 使來自發(fā)動機或輔助動力裝置的空氣進人氣源支管的活門。 返回 air bleed valve