girder without ballast and sleeper

[girder without ballast and sleeper]
[girder without ballast and sleeper]

中文释义

无碴无枕梁

单词分析

单词结构:

girder without ballast and sleeper

字母数:34

记忆提示

🎯 重点记忆:

  • 单词拼写:girder without ballast and sleeper
  • 核心含义:无碴无枕梁