parabolic arch
短语词组
- parabolic multi arch 抛物线连拱
- parabolic c arch 抛物线拱
- parabolic arch structure 抛物线拱型结构
- parabolic arch dam 抛物线拱坝
- two hinged parabolic arch 抛物线两铰拱
- minimum parabolic arch 极小抛物线弓形
- parabolic double -curved arch dam 抛物线双曲拱坝 返回 parabolic arch