wall in advance of arched roof tunneling method

[wall in advance of arched roof tunneling method]
[wall in advance of arched roof tunneling method]

中文释义

先墙后拱法

单词分析

单词结构:

wall in advance of arched roof tunneling method

字母数:47

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🎯 重点记忆:

  • 单词拼写:wall in advance of arched roof tunneling method
  • 核心含义:先墙后拱法