Pitchblende
['pɪtʃblend] or ['pɪtʃ,blɛnd]
解釋/意思:
(n.) A pitch-black mineral consisting chiefly of the oxide of uranium; uraninite. See Uraninite.
校對:马尔科姆
例句/造句/用法:
- There is (according to Soddy) about on e part of radium in five million parts of the best pitchblende, but the new element is about one million times more radio active than uranium. 李貝. 西洋科學史.
- In the chemical analysis of pitchblende mad e by Mme. 李貝. 西洋科學史.
- This discovery naturally led to further investigation, on the assumption that pitchblende contains more than one radioactive substance. 李貝. 西洋科學史.
伯特校對