portlandians

英 [portlandians]
美 [portlandians]

中文释义

n. [地质] 波特兰阶（等于Portlandian stage）

单词分析

单词结构：

portlandians

字母数：12

记忆提示

🎯 重点记忆：

  • 单词拼写：portlandians
  • 核心含义：n. [地质] 波特兰阶（等于Portlandian stage）

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更新时间：2026-01-07 00:49:48