Lena unit, lens, optical device, image reading unit, scanner and image forming device.
透镜单元，镜筒，光学装置，图像读取单元，扫描仪和图像形成设备。
2
In other words, view the film through the lens of the materials provided in class and in reading assignments.
换句话来说，透过课堂和阅读作业所提供的信息，来评鉴电影。
3
An auto measuring system of aerial camera lens is presented, which substitutes linear array CCD sensor for reading microscope to measure the focus of aerial camera lens.