An image forming apparatus includes an image carrying member, an image forming mechanism, an optical sensor, and a controller. 一种图像形成装置，包括图像承载体，图像形成机构，光学传感器控制器。
An adequate discussion of the image formation in a microscope needs more refined methods. 对显微镜中成象的充分论述，需要一些更精确的方法。
The most distant object for which an image can be formed on the retina is then nearer than infinity. 这时，能成象在视网膜上的最远物体比无穷远近。
