1. Opening by valves, as the capsule of a lily or iris. 
   瓣裂的由荚分开的，例如百合花或蝴蝶花的荚膜
2. iris in, iris out 
   圈入圈出
3. The apparently black circular opening in the center of the iris of the eye, through which light passes to the retina. 
   瞳孔暴露于眼睛虹膜中央明显的黑色圆形，光线通过此孔才能达到视网膜
4. bulbous Spanish iris having blue flowers. 
   具有蓝色花朵的块茎西班牙鸢尾。
5. conventionalized iris of art or heraldry. 
   格式化了的虹形艺术或纹章。

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• 1. 膜孔
  iris opening 膜孔...iris quartz 虹水晶
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