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pitchblenden.

英 'pɪtʃblend | 美 'pɪtʃ,blɛnd
中文n. [矿物] 沥青铀矿
词根词源
pitchblende (n.)also pitch-blende, 1770, a loan-translation of German Pechblende; see pitch (n.2) + blende.
关键词
pitchblende