空气活门 [机] air vent valve

可调放气活门 VBV

进气活门栅 flap valve grid ; inlet valve bank

排气活门 exhaust valve

进气活门抗沉积添加剂 intake valve deposit control additive

引气活门 bleed air valve

出气活门 air outlet valve

放气活门 air bleed valve ; Abblasventil

充气活门 valve