r
n.
字母r
詳細解釋
n.(名詞)
- 英語字母中的第十八個字母(小寫為r)
- 半徑(radius)的符號
- 中世紀羅馬數字的80
- R音
- R的活字
- 表示“第十八”的符號
- 倫琴射線,X射線(roentgen)的符號
- 盧布(ruble)
英語翻譯 Noun:
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a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air
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(physics) the universal constant in the gas equation: pressure times volume = R times temperature; equal to 8.3143 joules per kelvin per mole
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the 18th letter of the Roman alphabet
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the length of a line segment between the center and circumference of a circle or sphere
造句
- The trilled `r\\\' is produced by vibrating the tongue against the upper teeth.
發帶顫音的r,舌抬向上齒顫動而成。
常用短語
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A and R
=artists a...
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R.
[醫] 有機根,列[...
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R and D
研究與開發
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R and B
=Rhythm an...
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R & D
研究與開發
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R & B
=rhythm an...
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CD-R
可擦寫光盤(=Com...
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r
字母r
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B/R
bills rece...
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R months
(九月到次年四月)牡...
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r month
參照 month
近義反義詞 【近義詞】
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radius
半徑范圍
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universal gas constant
通用氣體常數...
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gas constant
氣體常數
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roentgen
倫琴
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