tunnel and ore pass development

英 [tunnel and ore pass development]
美 [tunnel and ore pass development]

中文释义

平硐溜井开拓

单词分析

单词结构：

tunnel and ore pass development

字母数：31

记忆提示

🎯 重点记忆：

  • 单词拼写：tunnel and ore pass development
  • 核心含义：平硐溜井开拓

最近查询：

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更新时间：2026-02-03 06:24:18