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Technology
containing
圆弧拱
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Chinese
English
圆弧拱
one-centered arch
圆弧拱
coved arch
圆弧拱
桥
circular arch bridge
圆弧拱
梁
circular arched girder
圆弧段拱的门
segment head
拱肋弧的圆心
rib center
组合
圆弧拱
built-up segmental arch
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