以下为句子列表：
英文: Abstract: Tensile reducer is one of the necessary apparatuses during the pipe production process at present.This paper deduces a multi-variation formula by using the energy principle and adopting upper limit method.The formula can be used to calculate the
中文: 文摘:张减机是钢管生产中不可缺少的设备之一.本文从一般能量原理出发，采用上限法推导出一个多变量公式，利用该公式可求解电机功率、张力系数、轧辊转速、出口钢管壁厚、孔型椭圆度等参数，并且从理论上计算出电机负功率的存在.
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英文: In terms of the weighted residual method to the springback anti-coupled equations, the springback potential energy principle and springback complementary energy principle of axisymmetric problems are established.
中文: 应用加权馀量法于该回弹反耦联方程，建立了轴对称问题的回弹势能原理和回弹馀能原理。
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英文: Meanwhile, the springback potential energy principle is applied to calculate the springback deformation of a pure bending of curved beam.
中文: 同时，应用该回弹势能原理于纯弯曲梁的回弹变形计算。
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英文: The Generalized springback potential energy principle, and generalized springback complementary energy principle of axisymmetric problems are founded by Lagrange's multiplier method to the springback potential energy principle and the springback complemen
中文: 应用拉氏乘子法于该回弹势能原理和回弹馀能原理，建立了轴对称问题的广义回弹势能原理和广义回弹馀能原理。
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英文: ON ENERGY PRINCIPLE OF COUPLE NEURON ACTIVITIES
中文: 关于耦合神经元活动时的能量原理
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