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单砖拱
meaning in English
jack arch
Related Words
砖拱
砖
拱脚砖
拱心砖
硅砖拱
横向拱
缺口拱
拱石
向上拱
回廊拱
单爪式送进
单爪有杆锚
单砖厚墙
单砖墙
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