英语词汇“inverted arch, floor arch”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	inverted arch, floor arch
释义	inverted arch, floor arch 底拱；又称“反拱”；曾称“仰拱”。在巷道底板设置的、连接两侧墙体或岩体的、拱矢向下的拱碹。
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