字典網>> 英漢字典>> R開頭詞條>>R的意思　漢英字典

R

音標[ɑ:(r)]　

中文翻譯：


【計】 半徑, 比例, 讀, 接收, 暫存器, 復位, 電阻, 程式

詞型變化：

名詞複數:r's 

字典網

例句：

  1. 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。

英文解釋：

名詞 r:

  1. a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air
    同義詞：roentgen
  2. (physics) the universal constant in the gas equation: pressure times volume = R times temperature; equal to 8.3143 joules per kelvin per mole
    同義詞：gas constant, universal gas constant
  3. the 18th letter of the Roman alphabet
    同義詞：letter r
  4. the length of a line segment between the center and circumference of a circle or sphere
    同義詞：radius

相關詞條：