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单词 pegmatite
释义
peg·ma·tite (pĕgmə-tīt)
n.
A coarse-grained granite, sometimes rich in rare elements such as uranium, tungsten, and tantalum.

[Greek pēgma, pēgmat-, something fastened together (from pēgnunai, to fasten; see pag- in the Appendix of Indo-European roots) + -ITE1.]

pegma·titic (-tĭtĭk) adj.
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更新时间:2025/3/22 6:13:21