天文观测舱，领航舱飞机顶部的一个透明圆顶形结构，航行时可通过它作。
A transparent dome on the top of an aircraft, through which celestial observations are made for navigation.
天文观测舱，领航舱飞机顶部的一个透明圆顶形结构，航行时可通过它作天文观测。
A transparent dome on the top of an aircraft, through which celestial observations are made for navigation.
天文观测舱，领航舱飞机顶部的一个透明圆顶形结构，航行时可通过它作天文观测。
A transparent dome on the top of an aircraft, through which celestial observations are made for navigation.
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