介绍了一种利用动力实验检测桥梁破损的方法。
A new method to check bridge pier damage by dynamic experiment is introduced.
便利的桥梁破损检测方法是目前研究的重点，本文介绍了一种利用动力实验检测桥梁破损的方法。
Today, convenient detection means of bridge damage is the focal point of the research. In this paper, a new method to check bridge pier damage by dynamic experiment is introduced.
我们的公路和桥梁已经破损。
桥梁伸缩装置的破损程度如何评价，如何养护维修，是公路管理养护部门急需解决的问题。
But how to estimate and maintain the bridge expansion joint is an urgently problem to be solved by the manage department of the highway.
由于设计、施工、管理、环境腐蚀、自然灾害等原因，目前已有不少桥梁发生老化、破损、裂缝等现象。
At present, some Bridges appear aging, damage and crack for some reasons, such as design, construction, management, natural disasters and so on.
然而，既有桥梁承载力不足、病害、老化以及破损等一直是世界性难题。
However, insufficient capacity of existing Bridges, disease, aging and other damage has been a global problem.
中美洲国家的几个群落因桥梁被毁、公路破损和道路被山体滑坡阻塞，处于孤立状态。
Several communities in this Central American nation remain isolated due to destroyed Bridges, highway damage and roads blocked by landslides.
正因为我们一起共同的努力，铁铲开始挖土了，起重机在空中移动了，工人们开始修建我们破损的道路和桥梁，修建我们未完善的防洪提和大坝。
Because of what we did together, there will now be shovels in the ground, cranes in the air, and workers rebuilding our crumbling roads and Bridges, and repairing our faulty levees and DAMS.
我们要重建美国破损不堪的道路、桥梁和堤防水坝。这样，新奥尔良和明尼亚波利斯的悲剧就不会重演。
Jobs that rebuild our crumbling roads, bridges and levees and dams, so that the tragedies of New Orleans and Minneapolis never happen again.
这就意味着我们要召集二百万人去重新修建坍塌的道路桥梁、破损的学校；
That means putting two million Americans to work rebuilding our crumbling roads, bridges, and schools.
这就意味着我们要召集二百万人去重新修建坍塌的道路桥梁、破损的学校；
That means putting two million Americans to work rebuilding our crumbling roads, bridges, and schools.
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