以下为句子列表：
英文: A non linear mapping function from multiple input data (damage parameters-damage locations and damage extents) to multiple output data (differences of displacements between damaged structure and intact structure calculated by FEM) is constructed within BP
中文: 摘要利用神经网络对有限元计算的样本数据建立起桥梁结构的损伤参数－损伤位置、损伤程度（输入）以及位移差－损伤结构与完好结构的位移差（输出）的全局性映射关系，以获得遗传算法求解桥梁结构损伤问题所需的目标函数值，从而识别桥梁的损伤参数。
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英文: In this paper, the large non linear FEM software MARC be used to calculate the 3D deformed distribution of the cold roll forming machine frame, slide seat and bolster plate.
中文: 摘要以大型非线性有限元软件MARC为分析工具，建立接触分析模型，对冷滚轧机床机架、滑台及垫板进行三维有限元弹性接触分析，给出机床三维变形状态的定量描述。
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英文: Resting gated myocardial imaging: pictures were collected per cardiac cycle,the matric was ××,and Vantage non linear attenuation correction was used.
中文: 静息门控心肌显像每心动周期采集帧图像,矩阵××,使用Vantage非线性衰减校正。
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