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Firstly, the paper introduces the principle of instituting contact interface element and the format of integral method for element stiffness matrix; secondly, because of the zero of displacement and load of soil in the infinite boundary, the unique shape
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文中首先阐述了接触元建立的方法以及单元刚度矩阵的积分方法；由于无限远处的土场位移、地震作用力皆为零，计算中对该单元刚度矩阵的形式不同于四节点等参元，文中推导了平行无限元的单元刚度拒阵方，并介绍了无限元单元刚度矩阵组装原理。 |
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Firstly, the preliminary result is got by using one PCNN and then further operation is performed on the result using the other PCNN and morphology: region orientation, uniting small region, edge extraction and thinning, and region labeling.
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首先利用一层脉冲耦合神经网络对图像进行分割，得到初步的结果；再利用另一层网络检测到的边缘点与形态学结合，对分割的区域进行相应的操作：区域定位，合并小区域，提取边界，对边界进行细化；最后对区域进行了标识。 |
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Firstly, the principle of MADM based on SVM is discussed.
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首先，分析了多属性决策支持向量机方法的原理。 |
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Firstly, the problem that the analysis of function and the analysis of data are separated in the course of traditional analysis and design is analyzed, and that the effective approach to solve this kind of problem is the using of Object-Oriented Technolog
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首先，分析了传统的分析设计中存在的功能分析与数据分析相分离的间题，指出了应用面向对象技术是解决此类问题的有效途径；然后，在系统的分析设计阶段，使用了OOA模型对系统的需求分析进行描述，给出了面向对象模型到关系数据模型的转换规则。 |
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Firstly, the strain gauge method was used to measure the time difference of stress wave passing through two gauges adhered on the surface of test piece and also their main frequencies Secondly, a 3-component dynamometer was used to measure the resonant fr
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本研究旨在研发两种新的应力波计测技术，其一为利用应变规来测定两标点间之应力波传递时间差及试材之共振频率，藉以计算试材之音速及动弹性系数，其二为利用三向动力计来测定试材之共振频率。 |
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Firstly, there is the degree of tiredness players will suffer if they are playing high tempo football all match.
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首先，如果球员在所有比赛里面都使用高节奏，那么球员会很容易疲劳。 |
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Firstly, there were the power dressers.
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其一,便是“体面扮相”。 |
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Firstly, there's the problem of North Korea.
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首先就是朝鲜问题。 |
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Firstly, they can acquire advanced science and technology in developed countries, and then introduce them into China when they come back.
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其次，西方高校的经济资助可以视为为中国训练专业人员的一条捷径，因为，作为一个发展中国家，中国还没有富到可以资助大批学生去国外学习。 |
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Firstly, they divided the country into shires, with shire courts and shire reeves, or sheriffs, responsible for administering law.
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首先，他们把国家划分为郡，郡法庭和郡法官、或行政司法长官负责执法。 |
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Firstly, they only have one way to mark information.
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首先，他们只有一种记下讯息的方式。 |
