drop shaft sinking method

英 [drop shaft sinking method]
美 [drop shaft sinking method]

中文释义

沉井[凿井]法

单词分析

单词结构：

drop shaft sinking method

字母数：25

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🎯 重点记忆：

  • 单词拼写：drop shaft sinking method
  • 核心含义：沉井[凿井]法

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更新时间：2026-01-29 02:13:29