segmental arch 弧形券 ; 弓形拱 ; 片段弓 ; [建] 平圆拱
segmental arch bridges 还有接种疫苗
segmental arch system 弓形拱系统
Segmental arch technique 片段弓技术
built-up segmental arch 组合圆弧拱
segmental Gothic arch 哥德式弧形拱
The earliest european segmental arch bridge was built at florence in1345.
欧洲最早的拱桥是1345年在佛罗伦萨建成的。
The earliest European segmental arch bridge was built at Florence in 1345.
欧洲最早的拱桥是1345年在佛罗伦萨建成的。 。
The earliest European segmental arch bridge was built at Florence in 1345.
欧洲最早的拱桥是1345年在佛罗伦萨建成的。
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