sleeper drill

英 [sleeper drill]
美 [sleeper drill]

中文释义

枕木钻孔机

单词分析

单词结构：

sleeper drill

字母数：13

记忆提示

🎯 重点记忆：

  • 单词拼写：sleeper drill
  • 核心含义：枕木钻孔机

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更新时间：2026-02-21 08:44:17