主焦点的英文

[光学] meridional focus; primary focus; tangential focus; prime focus; principal focus

• 后焦点,后主焦点:    posterior focus; p ...
• 后主焦点,后焦点:    posterior focal po ...
• 前焦点,前主焦点:    anterior focus

例句与用法

1. That location was called the " prime focus "
   这一位置就叫“主焦点” 。
2. Perhaps for such reasons , the term " prime focus " is increasingly being used in a more general manner : in systems in which there is only one place where there is a focuser - - where an image is formed and you can get at it with an eyepiece or some other equipment - - that location is called the " prime focus "
   可能出于这些原因， “主焦点”一词正逐渐被人们以一种更宽泛的方式使用：在只有一个聚焦装置的光学系统中，那个成像的、可以用目镜或其他装置摄取像的位置，就叫做“主焦点” 。