arched roof in advance of wall tunneling method

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

中文释义

先拱后墙法

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单词结构：

arched roof in advance of wall tunneling method

字母数：47

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  • 单词拼写：arched roof in advance of wall tunneling method
  • 核心含义：先拱后墙法

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更新时间：2026-02-21 00:53:25