down-feather

英['daʊnf'eðər] 美['daʊnf'eðər]
  • 绒羽(动)
  • downcomer n.泄水管(下导管)
  • seal n.封条;印章n.海豹v.密封;盖印;明确
名词 down feather:
  1. soft fine feathers

    1. In a plumulaceous feather, barb ridges grow straight without any helical movement.
      在绒羽上,羽枝脊则直直生长,不做螺旋形移动。
    2. Common allergens include pollen, animal dander, down feathers, mites, chemicals, and a variety of foods.
      常见的过敏原包括花粉,动物皮屑,绒羽,螨类,化学品,以及各种食品。