full-hole rock bit

英 [full-hole rock bit]
美 [full-hole rock bit]

中文释义

全断面无岩心钻头

单词分析

单词结构：

full-hole rock bit

字母数：18

记忆提示

🎯 重点记忆：

  • 单词拼写：full-hole rock bit
  • 核心含义：全断面无岩心钻头

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更新时间：2026-02-06 01:41:51