| 单词 | iris-diaphragm |
| 释义 | > as lemmasiris-diaphragm iris-diaphragm n. a contractile diaphragm for lenses, contrived so as to imitate the action of the iris. ΘΚΠ society > leisure > the arts > visual arts > photography > camera > parts and accessories of camera > [noun] > lens > diaphragms stop1831 iris-diaphragm1867 iris1911 1867 Trans. Royal Miscrosc. Soc. 15 74 (heading) Iris diaphragm proving the circular form whether expanding or contracting. a1877 E. H. Knight Pract. Dict. Mech. II. 1195/2 Iris-diaphragm, a contractile diaphragm, simulating the action of the natural iris. 1889 Internat. Ann. Anthonys Photogr. Bull. 66 These lenses may be had with iris diaphragms. 1890 Internat. Ann. Anthonys Photogr. Bull. 119 Iris diaphragms applied to photographic lenses are a recent reintroduction. < as lemmas |
| 随便看 |
英语词典包含1132095条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。