C2 noun #145,751 最常用

a radioactive mineral consisting of thorium silicate; it is a source of thorium that is found in coarse granite

thorite 30秒了解

  • (noun) a radioactive mineral consisting of thorium silicate; it is a source of thorium that is found in coarse granite

Meanings

  1. 1
    noun a radioactive mineral consisting of thorium silicate; it is a source of thorium that is found in coarse granite
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