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单词 U.
释义

U.

汉语翻译

【医】 单位

英语解释:

名词 u.:

  1. a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine
    同义词:uracil, U
  2. a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
    同义词:uranium, U, atomic number 92
  3. the 21st letter of the Roman alphabet
    同义词:U, letter u

形容词 u.:

  1. (chiefly British) of or appropriate to the upper classes especially in language use
    同义词:u
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