top slicing cover caving

英 [top slicing cover caving]
美 [top slicing cover caving]

中文释义

下向水平分层顶板崩落采矿法

单词分析

单词结构：

top slicing cover caving

字母数：24

记忆提示

🎯 重点记忆：

  • 单词拼写：top slicing cover caving
  • 核心含义：下向水平分层顶板崩落采矿法

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更新时间：2026-02-05 10:36:11