Moreover, duck feather structure possess good streamline to reduce the resistance when duck swims because of the slant flange on the cross section and barb at the end of feather.

 
  • 麻鸭腹部羽毛的剖面呈现倾斜的凸起结构且其羽毛末端上有倒钩,使其具备了良好的流线型结构,降低了水流的阻力。
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