iris-diaphragm

英 ['aɪrɪsd'aɪəfræm] 美 ['aɪrɪsd'aɪəfræm]

• [医] 虹膜式光阑

英英释义

名词 iris diaphragm:

1. diaphragm consisting of thin overlapping plates that can be adjusted to change the diameter of a central opening