retreating system

英 [retreating system]
美 [retreating system]

中文释义

后退式开采法

单词分析

单词结构：

retreating system

字母数：17

记忆提示

🎯 重点记忆：

  • 单词拼写：retreating system
  • 核心含义：后退式开采法

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更新时间：2026-01-23 17:49:26