单词	iris diaphragm
释义	iris diaphragm noun : an adjustable diaphragm of thin opaque plates that can be turned by a ring so as to change the diameter of a central opening usually to regulate the aperture of a lens (as in a camera or microscope)
随便看	chambray chambre chame chame- chameleon chameleon chameleonic chameleon tree frog chametz chamfer chamfer chamfer angle chamfer bit chamferer chamfer plane chamfrain chamfron chamicura chamicuro chamisa chamisal chamise chamiso chamite chamiza

英语词典包含332784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。