... closure of arch ring 拱圈封顶 arch ring stress adjustment 拱圈应力调整 ; 拱圈应力调解 Arch Ring Slabs 拱圈底板 ...
基于32个网页-相关网页
... closure of arch ring 拱圈封顶 arch ring stress adjustment 拱圈应力调整 ; 拱圈应力调解 Arch Ring Slabs 拱圈底板 ...
基于6个网页-相关网页
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