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r的英文翻译是什么意思,词典释义与在线翻译:
详尽释义
n. (名词)
- 英语字母中的第十八个字母(小写为r)
- 半径(radius)的符号
- 中世纪罗马数字的80
- R音
- R的活字
- 表示“第十八”的符号
- 伦琴射线,X射线(roentgen)的符号
- 卢布(ruble)
英英释义
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的用法和样例:
例句
- The trilled `r' is produced by vibrating the tongue against the upper teeth.
发带颤音的r,舌抬向上齿颤动而成。