main lens meaning in Chinese
主镜头
主透镜
Examples
- The following figure shows the three basic optical designs of telescopes . usually , apart from the main lens or mirror , there are more mirrors to bring the focus to some convenient position , as shown in the diagrams below
通常来说，除了一块主镜之外，望远镜内有很多其他透镜及反射镜，把光线导引及屈折到一个方便观看的位置上，就有如下图所示。