内: inner; inside; within拱圈: arch ring内拱: rerearch拱圈: arch ring◇拱圈层 [房] ring course; 拱圈底面 plancier; 拱圈内面 [房] soffit; 拱圈砖 circle brick叠内拱: recessed arch拱圈层: ring course拱圈砖: circle brick外拱圈: extrados洞室拱圈: cavern arch拱圈衬砌: arch lining拱圈底面: plancier拱圈封顶: closure of arch ring拱圈结合层: lacing course拱圈轮廓: arch profile拱圈内面: soffit拱圈内面, 拱腹: soffit拱圈施工缝: construction joint for arch ring拱圈中心: arch center拱圈中心角: central angle of arch; included angle of arch教堂拱圈: quire arch坝顶拱圈中心: arch center for crest拱圈应力调整: arch ring stress adjustment固定拱圈理论: built arch theory拱坝顶拱圈中心: arch centre for crest拉结层 拱圈结合层 挂结层 带层: lacingcourse
