expansion crosstie

英 [expansion crosstie]
美 [expansion crosstie]

中文释义

腰板横梁

单词分析

单词结构：

expansion crosstie

字母数：18

记忆提示

🎯 重点记忆：

  • 单词拼写：expansion crosstie
  • 核心含义：腰板横梁

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更新时间：2026-04-18 15:22:16