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单词 pyrochlore
释义 pyrochlore
 /puy"reuh klawr', -klohr'/,  n.  
 a mineral, chiefly composed of niobates of the cerium metals, occurring in syenites in the form of brown crystals.
 [1820-30; < G Pyrochlor. See PYRO-, CHLOR-1]
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