banwonhyeong achi
semicircular arch
arc en plein cintre
고대 로마 건축에서 반원형 아치는 매우 흔하게 사용되었습니다.
godae roma geonchukeseo banwonhyeong achi-neun maeu heunhage sayongdoeeossseubnida.
In ancient Roman architecture, the semicircular arch was used very commonly.
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