英语词汇“pitch、blende”的英英意思、用法、释义、翻译、读音、例句、短语、词组、英语词典-本地帮

单词

pitch-blende

释义

pitch-blende Min.|ˈpɪtʃblɛnd|
[ad. Ger. pechblende (Cronstedt, 1758), f. pech pitch n.¹: see blende.]
Native oxide of uranium, found in blackish pitch-like masses, more rarely crystalline; also called uraninite.
1770tr. Cronstedt's Min. 217 Pechblende or Pitch Blende of the Germans.1794Hutchinson Hist. Cumbld. I. Catal. Fossils 52/1 Peche blende, of a glassy shining surface, often crystallized in irregular pyramids.1814Aikin Min. 296 Pitch Blende.1861H. W. Bristow Gloss. Min. 296 Pitch⁓blende is distinguished from brownblende by colour.1898Daily Chron. 8 Oct. 3/4 Pitchblende..possesses the property of emitting the rays, or form of energy, known as the Becquerel rays.1904Ibid. 6 Jan. 5/7 Mme. Curie..discovered radium in the residue left after uranium had been extracted from ‘pitch-blend’, or uranium ore.

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