exterior focusing telescope的意思|示意

外调焦望远镜 interior focusing telescope 内对光望远镜 ; 内凋焦望远镜 ; 内调望远镜 exterior focusing telescope 外调焦望远镜 turret mask focusing telescope 塔式遮蔽聚焦节距镜 ..

外对光望远镜 ... exterior focusing 外聚焦 exterior focusing telescope 外对光望远镜 eyepiece focusing 目镜调焦 ...