double arch bridge
... double agent 双重间谍 double arch bridge 双曲拱桥 double as 兼饰两角 ...
[交] double-convex arch bridge
... 双吊杆装卸法 balanced weight method 双曲拱桥 double-convex arch bridge 双线车道 dual carriageway ...
double-curvature arch bridge
... 双曲拱坝 dome dam 双曲拱桥 double-curvature arch bridge 双曲柄 double crank ...
Highways & Automotive Applications
1964年江苏省无锡县建桥职工创造的一种新型拱桥。他的主拱圈由拱肋,拱波,拱板,和横向联系构件几个部分组成,外形在纵横两个方向均成弧形曲线,因之称为双曲拱。