The invention relates to swing flapper used to kill mosquito and fly.本发明涉及一种用于捕杀蚊蝇的蚊甩子.And theoretical basis is presented to further apply nozzle - flapper valve to two - stage electro - hydraulic servo valve .较快的响应速度;为进...

flapper的音标：flapper的英式发音音标为：['flæpə(r)]flapper的美式发音音标为：['flæpɚ]...

n.（打苍蝇等的）拍子，蝇拍...