graptolite shale

英 [graptolite shale]
美 [graptolite shale]

中文释义

笔石页岩

单词分析

单词结构：

graptolite shale

字母数：16

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  • 单词拼写：graptolite shale
  • 核心含义：笔石页岩

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更新时间：2025-12-21 06:57:25