A new type of girder structure-high speed railway composite girder was proposed, which features a combination of reinforced concrete deck and steel girder as well as an unity of girder and girder erecting equipment.
提出了一种新的桥梁结构型式,即高速铁路结合梁,它既是钢筋混凝土桥面板与钢梁的结合,而且还 是桥梁与其架设设备的统一。
Research of device authentication mechanism in EPA;
EPA设备鉴别安全机制的研究