网络释义专业释义英英释义
... 正垂线 horizontal-profile line 中垂线 midperpandicular; midperpendicular; perpendicular bisector 主垂线 prime vertical; principal line; principal vertical line ...
基于1个网页-相关网页
altitude on the prime vertical 东西圈高度
magnetic prime vertical [地物] 磁卯酉圈 ; 磁主垂面
true prime vertical 真东西圈
grid prime vertical [航] [水运] 格网主垂面
compass prime vertical [航] [水运] 罗盘的东西圈
prime vertical transit 卯酉面中星仪
altitude of the prime vertical 东西圈高度
the prime vertical circle 主要的垂直圆
Prime vertical
- abstract: In astronomy and astrology, the prime vertical is the vertical circle passing east and west through the zenith, and intersecting the horizon in its east and west points.
以上来源于: WordNet
柯林斯英汉双解大词典
prime vertical
-
1.
N the great circle passing through the observer's zenith and meeting the horizon due east and west 卯酉圈 [astronomy]
应用推荐