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外鳃

wài sāi
  • Outer gill;external gill
外鳃外鳃
  1. 蝌蚪长有羽毛似的外鳃。

    The tadpoles have feathery external gills .

  2. 三角帆蚌胚胎在外鳃育儿囊内形态变化初步研究

    A primary study on the morphological changes of embryo of Hyriopsis cumingii in nurturing pouch of outer gill