down-the-hole drill bit

英 [down-the-hole drill bit]
美 [down-the-hole drill bit]

中文释义

[矿业] 潜孔钻头

单词分析

单词结构：

down-the-hole drill bit

字母数：23

记忆提示

🎯 重点记忆：

  • 单词拼写：down-the-hole drill bit
  • 核心含义：[矿业] 潜孔钻头

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更新时间：2025-12-24 02:39:08