upward shaft deepening method

英 [upward shaft deepening method]
美 [upward shaft deepening method]

中文释义

上向井筒延深法

单词分析

单词结构：

upward shaft deepening method

字母数：29

记忆提示

🎯 重点记忆：

  • 单词拼写：upward shaft deepening method
  • 核心含义：上向井筒延深法

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更新时间：2026-02-02 10:52:53