以下为句子列表：
英文: Basing on the method of approximate mechanics, the mechanical behavior and fatigue fracture characteristic of steel bridge asphalt mixture surfacing under repeated load was analyzed.
中文: 摘要采用力学近似方法，对钢桥面沥青混合料铺装层在循环荷载作用下的力学行为和疲劳损伤特性进行了理论分析。
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英文: The results showed that the fatigue fracture of the connecting head happened first, which was related both to the working stress and to the processing of this part.
中文: 结果表明，连杆盖首先发生疲劳断裂，随后导致连杆螺栓的断裂，而这种断裂既与应力有关，又与零件的加工工艺有关。
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