ra是什么意思
2024-02-03 17:27:16
ra
abbr. [化]元素镭（radium）的符号
异体字：Re
近义词：rightascension，radium，re，celestiallongitude，
详细释义
abbr.(缩略词)
- =Royal Academy （英国）皇家学院
- 正规陆军（=regular army）
- 赤经（=right ascension）
- 【化】元素镭（radium）的符号
n.(名词)
- 【埃及神话】太阳神
英英释义
Noun
- an intensely radioactive metallic element that occurs in minute amounts in uranium ores
- ancient Egyptian sun god with the head of a hawk; a universal creator; he merged with the god Amen as Amen-Ra to become the king of the gods
- (astronomy) the equatorial coordinate specifying the angle, measured eastward along the celestial equator, from the vernal equinox to the intersection of the hour circle that passes through an object in the sky; usually expressed in hours and minutes and seconds; used with declination to specify positions on the celestial sphere;
"one hour of right ascension equals fifteen degrees"
例句
- Ras Al Ghul: Gothams time has come. 拉斯·尔·福：歌潭镇的时代已经来临。
- Koo- ka- bur- ra sits in the old gum tree. 笑 翠 鸟 站 在 枫 香 树 上。
- The RA can determine how the processing is done. RA可以决定如何处理。
- RA: Would you please show you room card? 服务员:请出示您的房卡好吗?
- Operational specification for monitor of ships ra. 船用雷达性能监测器通用技术条件。
- Major Cities: Suva, Lautoka, Lami, Nadi, Ra. 主要城市：苏瓦、劳托卡、拉米、南迪、拉。