Introduced here are details of the design, construction and appraisal of unsafe bridge enhancement by means of external prestressing, with the example of Zhongjiang bridge in the city of Wuhu.
通过芜湖市中江桥加固工程实例，介绍采用体外预应力方法加固危桥的具体设计施工及其效果评价。
For example, they were asked whether it was right to have let your girlfriend walk across a bridge you knew was unsafe.
比如，他们被问到明知有一座不安全的桥，但让你的女友从这里经过是否正确。
For example, subjects were asked to judge how permissible it is for someone to let his girlfriend walk across a bridge he knows to be unsafe, even if she ends up making it across safely.
例如，受试者判断有人明知道桥很危险，但仍然让他女朋友穿过桥，尽管最终安全穿过。
The bridge looked so unsafe that the travellers all hung back in fear.
这座桥看来很不稳，行人都望而却步。
The bridge looked so unsafe that the travellers all hung back in fear.
这座桥看来很不稳，行人都望而却步。
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