iris-diaphragm

英['aɪrɪsd'aɪəfræm] 美['aɪrɪsd'aɪəfræm]
  • [医]虹膜式光阑
  • iris n.虹膜;鸢尾属植物Iris.n.[希神]彩虹女神
名词 iris diaphragm:
  1. diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening