自制卡式,直径22.7厘米,副镜双曲面完成磨制。合成焦比13.6 |
点评 | |
|
|
点评 | |
|
|
点评 | |
|
|
| |
|
|
点评 | |
|
|
|
|
|
APP下載|手机版|爱牧夫天文淘宝店|牧夫天文网 ( 公安备案号21021102000967 )|网站地图|辽ICP备19018387号
GMT+8, 2025-6-8 06:45 , Processed in 0.105094 second(s), 21 queries , Gzip On, Redis On.