Marble Arch tube station 大理石拱门地铁站
arch-tube washout plug [铁路] 拱管扩口工具
steel-tube truss rib arch bridge 空钢管桁肋式拱桥
steel tube arch 钢管拱
arch steel tube truss 拱形钢管桁架
Arch rib steel tube 拱肋钢管
steel tube arch rib 钢管拱肋
steel tube arch ribs 钢管拱肋
steel tube arch truss 钢管拱桁架
It gave a research result on the manufacture technology of arch tube truss, and put forward firstly the instability hoisting technology of single truss.
探索出圆拱形管桁架的分段制作、现场拼接技术，首次开发了单榀桁架非稳定性吊装技术。
This paper has mainly introduced when using arch tube-plate and screw smoke-tube to reform the DZ-type horizontal packaged boiler. Good results of saving on energy has been got.
文章介绍了采用拱形管板和螺纹烟管技术对DZ卧式快装锅炉加以改造，取得良好节能效果。
The problem of the effect on the initial stress to the bearing capacity of the concrete-filled steel tube (CFST)arch bridge are constantly concerned by bridge engineers.
钢管初应力对钢管砼拱桥承载力影响一直是工程界关注的问题。
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