桥梁用预应力钢丝钢绞线都在高的交变应力状态下服役，加上海水、潮湿环境的影响，更加速其应力腐蚀的速率。

Prestressed steel wire and strand for bridge are used in the condition of high alternating stress with humidity atmosphere and sometime seawater atmosphere, which speed up the corrosion.

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螺纹部位承受高的交变应力，是导致螺纹联接螺纹失效的主要原因。

That the thread endures high alternate stress is the first cause of failure of thread joint.

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在跟踪求交的算法中充分利用了交线的几何特性，按等弓高误差快速精确地求取曲面上的交线。

The algorithm makes full use of geometric information of intersecting lines to speed up the calculation according to the arc height tolerance.

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When you all go and get driver's licenses or when you did get driver's licenses you have to pay higher auto insurance premiums than I do.

等你们拿到驾驶证时,也许有些人已经拿到了,你们交的汽车保险要比我高。

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