Ra
abbr.
[化]元素鐳（radium）的符號
詳細解釋
abbr.(縮略詞)
- =Royal Academy （英國）皇家學院
- 正規陸軍（=regular army）
- 赤經（=right ascension）
- 【化】元素鐳（radium）的符號
n.(名詞)
- 【埃及神話】太陽神
英語翻譯 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
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(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\\\"
造句
-
Ra.
=Range
-
R.A.
皇家藝術學會...
近義反義詞 【近義詞】
-
right ascension
赤經
-
radium
[化]鐳（元素符號Ra）...
-
re
關于
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celestial longitude
黃經
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