flapsn.襟翼名词flap的复数形式.flapn.拍打；拍打声；片状垂悬物；副翼；<口>不安v.拍打；鼓翼而飞flapping airfoils扑动翼型flapping movement振翅扑击样运动, 扑翼样运动flap endonuclease激动内切核酸酶flapping - wing扑翼flapper mechanism挡板机构flap folding seat折叠座位flapping mechanism挥舞调节器flap-type nozzle调节片式喷管flapping its wings扑棱着翅膀flapping frequency扑动频率