腹拱（spandrel arch）对于空腹式拱上建筑，腹孔采用拱的形式。
主拱的主孔和双方的腹拱洞里形成并排20红石拱门。
The main arch's main hole and the both sides abdomen arch the eyelet is 20 red stone arches juxtaposes becomes.
空腹式拱桥是指主拱圈和主梁之间用立柱支撑，在主拱圈以上设有腹拱的拱桥。
Empty arch bridge is the arch bridge that USES sign pillar to prop up between the main arch and main beam, and has inner-arch on the main arch.
可以看到，主、腹拱的两侧通身都雕刻有天马彩云、云龙、莲花、牡丹以及三角几何等图案。
You can see, the main and ventral arches are carved on both sides of Tong Shen ma Caiyun days, Yunlong, lotus, peony, and triangular geometric patterns and so on.
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