Helderbergian formation

英 [Helderbergian formation]
美 [Helderbergian formation]

中文释义

海德贝格阶

单词分析

单词结构：

Helderbergian formation

字母数：23

记忆提示

🎯 重点记忆：

  • 单词拼写：Helderbergian formation
  • 核心含义：海德贝格阶

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更新时间：2026-03-17 00:10:58