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单词 pitchblende
释义

pitchblende

From Longman Dictionary of Contemporary EnglishRelated topics: Earth sciencespitchblendepitch‧blende /ˈpɪtʃblend/ noun [uncountable]  HEa dark shiny substance dug from the earth, from which uranium and radium are obtainedExamples from the CorpuspitchblendeThe cliff contains pitchblende veins that have been sources of dissolved uranium.Veins of pitchblende in the cliff are the source of uranium in the flat floodplain deposits at the foot of the cliff.
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更新时间:2024/9/22 1:36:43