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r的英文翻譯是什麼意思,詞典釋義與在線翻譯:
詳盡釋義
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.
髮帶顫音的r,舌抬向上齒顫動而成。