Upper transit

(Astron.)

the passage of a heavenly body across that part of the meridian which is above the polar axis.

upper transit

[′əp·ər ′trans·ət] (astronomy) The movement of a celestial body across a celestial meridian's upper branch. Also known as superior transit; upper culmination.

随便看

英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。