secondary drilling

英 [secondary drilling]
美 [secondary drilling]

中文释义

二次爆破钻孔

单词分析

单词结构：

secondary drilling

字母数：18

记忆提示

🎯 重点记忆：

  • 单词拼写：secondary drilling
  • 核心含义：二次爆破钻孔

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更新时间：2026-01-14 05:30:55