天頂
拼音:tiān dǐng英文翻譯
roof; vertex; zenith相關詞條:
1.celestialpole例句:
- 天頂太陽或別的天體在天空中所達到的最高點;天頂The highest point in the sky reached by the sun or another celestial body; a zenith.
- 天底天球上,在觀測者垂直向下的一點,與天頂完全相對A point on the celestial sphere directly below the observer, diametrically opposite the zenith.