local contraction meaning in Chinese

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Using processed experiment data of practical ship plate , the author establishes six linear regression models and three neural network models in this thesis with local contraction being the response variable . the explanatory parameters used in the models are attributed to the collaboration of department of naval architecture , dalian university of technology and dalian new shipyard
作者在大连理工大学船舶工程系与大连造船厂、新船重工多年合作，通过大量的试验板与实船板试验测试，在找到的影响加工成形的主要参数的基础上，运用回归分析法，对945钢水火加工成形进行了试验、分析。
Three models are established first by linear regression analysis with the experiment data of practical ship plate . through comparisons between the three models obtained , the effect of each parameter on the local contraction , is examined , the conditions of application are estimated , and explanations are given to the error induced in the models obtained . 3
首先选择影响成型的主要变形参数，运用数理统计原理及逐步回归分析方法，对945钢板测试数据进行回归分析，建立了三种变形参数的回归模型，最后比较分析这三种回归公式的回归效果，考察回归公式中各变形参数对变形量的影响程度，给出适用条件，分析误差项产生的原因。