flap valve assembly

assembly ... flap roller-and-guide rail assembly 襟翼导轨装置 flap valve assembly 片状活门组; (脉冲式喷气发动机的)活门栅 ...

valve 阀门专业词汇A-Z ... flap check valve 阀瓣式止回阀 flap valve assembly 活门栅 flap valve grid 进气活门栅 ...