flailv.挥动；用连迦打；敲打n.连迦flail mitral valve连枷二尖瓣, 连枷状二尖瓣flail-type blade甩板式刀片flail-type beater连枷式击碎轮flail mitral leaflet连枷状二尖瓣小叶flail hanger retainer bolt甩刀固定螺栓flail- length eDNA library全长cDNA文库flail-type forage harvester甩刀式饲料收获机