prime vertical

prime vertical

美 　英

• na.【天】卯酉圈
• 网络东西圈；主垂圈；卯酉圈的概念

英汉解释

na.

1. 【天】卯酉圈

英英解释

n.	1. the imaginary circle around Earth that goes through the highest point of the celestial sphere directly above an observer and meets the horizon at east and west