之后，通过合理控制前固定组球差及后固定组焦距，使变焦过程中的像面保持稳定。
Then, image surface position was kept steady during a zooming process by controlling the spherical aberration of front fixed group and the focal length of back fixed group.
毕业前一周，她基本上成了焦距。
Her was basically the focal point the week before graduation.
毕业前一周，她基本上成了焦距。
Her was basically the focal point the week before graduation.
应用推荐