In this paper, by using matter element theory, a method which can transform non-concordantly conjugate system of matter elements into concordantly conjugate system of matter elements is discussed.
应用物元理论，给出了把非协调物元共轭系统转化成协调物元共轭系统的一种方法。
The deformation of rolled piece in conjugate deep cut pass is simulated by finite element method. The error of simulated result is less than 1%.
用有限元法对共轭切深孔中轧件的变形进行了计算机模拟，模拟计算结果误差小于1%。
A new method of optimisation design for the correction element in control system is stated by combining the conjugate gradient method and using MATLAB software.
结合共轭梯度法，借助于MATLAB软件，提出一种控制系统校正环节优化设计的新方法。
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