the plumage of a bird or part of a bird 羽毛 ■feather-like markings or structure 羽状花纹(或结构) traditional finishes such as marbling and feathering. 大理石花纹和羽毛状花纹之类的传统装饰图纹。 ■the feathers of an arrow 箭翎 ■fringes of hairs on the appendages or body of a dog (狗的)丛毛 ■(Architecture)cusping in tracery (建筑)(花窗中窗饰条纹的)尖点,交合点
the action of varying the angle of propellers, rotor blades, or oars so as to reduce air or water resistance (螺旋桨、动叶片或桨的)顺流交距