umbrella arch的意思|示意
隧道护拱
umbrella arch相关短语
1、 large-pipe umbrella arch 大管棚施工
umbrella arch相关例句
The umbrella shaped cover is one of the fixed tank covers, which is characterized between the conical cover and the arch cover .
伞顶是介于锥顶与拱顶之间一种固定式罐顶结构形式。
With the influence of so many cracks, the strength, stiffness and stability of the umbrella arch is decreased greatly, which endangers the operation of underground power house.
数目众多的纵、横向裂缝已大大削弱了混凝土顶拱的强度、刚度及稳定性，危及地下厂房的安全运行。