primary meridian

英 [primary meridian]
美 [primary meridian]

中文释义

起始经线

单词分析

单词结构：

primary meridian

字母数：16

记忆提示

🎯 重点记忆：

  • 单词拼写：primary meridian
  • 核心含义：起始经线

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更新时间：2025-12-27 11:56:12