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r的英文翻譯是什么意思,詞典釋義與在線(xiàn)翻譯:
詳盡釋義
n. (名詞)
- 英語(yǔ)字母中的第十八個(gè)字母(小寫(xiě)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(xiàn),X射線(xiàn)(roentgen)的符號
- 盧布(ruble)
英英釋義
Noun:
-
a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air
-
(physics) the universal constant in the gas equation: pressure times volume = R times temperature; equal to 8.3143 joules per kelvin per mole
-
the 18th letter of the Roman alphabet
-
the length of a line segment between the center and circumference of a circle or sphere
r的用法和樣例:
例句
- The trilled `r' is produced by vibrating the tongue against the upper teeth.
發(fā)帶顫音的r,舌抬向上齒顫動(dòng)而成。
詞匯搭配
r的相關(guān)資料:
近反義詞
【近義詞】
- radius 半徑范圍
- universal gas constant 通用氣體常數...
- gas constant 氣體常數
- roentgen 倫琴