shaft and drift excavation

英 [shaft and drift excavation]
美 [shaft and drift excavation]

中文释义

井巷掘进

单词分析

单词结构：

shaft and drift excavation

字母数：26

记忆提示

🎯 重点记忆：

  • 单词拼写：shaft and drift excavation
  • 核心含义：井巷掘进

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更新时间：2026-04-11 09:54:53