单词primary mirror
un.: 主镜
网络: 主镜面
主镜
A primary mirror site has good bandwidth, is available 24 hours a day, and has an easy to remember name of the form ftp. . . debian. org.
一个主站有更好的带宽，每天24小时在线，以及更容易记住的名字，如。
This is the distance (usually in mm. ) from the lens (or primary mirror) to the point where the telescope is in focus (focal point).
就是从透镜（或者主反射镜）到焦点的距离，通常单位是毫米（mm）。
The clear aperture of a telescope is the diameter of the objective lens or primary mirror specified in either inches or millimeters (mm).
望远镜的孔径显然就是物镜或者主反射镜的直径，一般用英寸或者毫米（mm）来表示。
The segmented primary mirror of space-based telescope is controlled by a number of actuators to achieve a required surface shape.
空间望远镜分块式主镜的面形是由其背后布置的若干致动器控制的，是一个复杂的控制系统。
The brief description is given for the center supports of primary mirror design too.
对主镜中心支承设计进行了简要说明；
Card plug green type telescope primary mirror and vice lens can have a variety of different forms, optical properties also different.
卡塞格林式望远镜的主镜和副镜可以有多种不同的形式，光学性能也有所差异。
The primary mirror is 80 cm in diameter, a respectable size even for an observatory on the ground.
主镜的直径为80厘米，这一口径即使在地面天文台也是很可观的。
the primary mirror surface figure accuracy which is researched in this paper satisfies the technical requirements.
本课题最终分析出该主镜面形精度满足技术要求。
Aberration characteristics of a two-mirror system with a two-lens zero-power corrector placed before the primary mirror
双贴合无光焦度校正板在主反射镜前的两镜系统的像差特性
Optimization analysis for the underside support of the primary mirror by the finite element method
基于有限元法的主镜底支撑的优化分析