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diameter of pilot bit

英 [diameter of pilot bit]
美 [diameter of pilot bit]

中文释义

[矿业] 超前孔钻头直径

单词分析

单词结构:

diameter of pilot bit

字母数:21

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🎯 重点记忆:

  • 单词拼写:diameter of pilot bit
  • 核心含义:[矿业] 超前孔钻头直径

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更新时间:2026-01-30 23:41:24

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