答案是90年代末草草增加到马约里的“稳定和增长条约”,该条约旨在增强欧元区各国公共财政的责任意识。
Bonding a steel plate at the surface of the tensile area is an effective method to reinforce the rc beams.在受拉区表面粘贴钢板是加固钢筋混凝土梁的一种有效方法。
The effect method of reinforce and maintenance the stone arch bridge is to build liner around the arch bridge down area. That combines the old arch round and the new reinforced concrete together.在石拱桥拱圈的下部进行衬砌加固,使老石拱桥拱圈与新钢筋混凝土套拱形成整体,共同受力,是一种维修加固石拱桥的简单实用的方法。