以下为句子列表：
英文: A common ranking method—term frequency/inverse document frequency—considers the distribution of words and their frequencies, then generates numerical weights for words that signify their importance in individual documents.
中文: 常见的排行方法之一是评估字词的分布与出现频率，即词频与文件频率倒数，然后为字词建立权值，代表各字词在个别文件内的重要性。
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英文: A finite element numerical model for arch dam-gravity pier-foundation system was established to evaluate the effect of high gravity piers on the stress, deformation and anti-sliding stability of Sizhai arch dam, taking the following factors into account,
中文: 摘要为评价高重力墩对四寨拱坝的应力变形和抗滑安全的影响，建立了拱坝－重力墩－地基系统的有限元数值模型，其中考虑重力墩－基础、右岸夹层和拱坝－重力墩等交界面的非线性相互作用，以及基岩材料的弹塑性变形行为。
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英文: A methodology was put forward for damage location, and damage simulating as well as numerical calculation of modal analysis was carried out on a truss plane bridge by stiffness discount.
中文: 摘要推导了基于测试频率平方变化比的损伤定位方法，利用有限元方法对一管道结构以刚度折减法进行了损伤模拟和模态分析数值计算。
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英文: （DDX auto pinning machine is used to make reference positioning pin prior to drill the laminated plates of etched circuit card on drill machine to ensure that the numerical controlled drill machine for etched circuit card can manufacture premium puoducts.
中文: DDX全自动钉销机用于印制电路叠层板在印制电路板数控钻孔前钻作基准定位销钉，从而保证印制电路板床能加工出高品质的产品。
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英文: 4 mm cryoprobe was conducted and a multidimensional numerical model based on enthalpy method and solved by finite element scheme for the freezing process of simulative biological tissues during cryosurgery is presented.
中文: 本文建立了低温冷刀实验台，在模拟生物组织中进行冷冻实验，测量了冰球内某点的温度变化；并用有限元方法求解了建立在治法基础上的模拟生物组织冻结过程多维数学模型，计算结果与实验值符合较好；用该模型和方法计算了实验条件下冰球内的温度梯度变化和冷刀所需理论冷量；分析了不同的冷刀直径对冻结过程的影响。
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