built-up track

英 [built-up track]
美 [built-up track]

中文释义

螺栓组合岔心

单词分析

单词结构：

built-up track

字母数：14

记忆提示

🎯 重点记忆：

  • 单词拼写：built-up track
  • 核心含义：螺栓组合岔心

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更新时间：2026-02-01 18:05:42