利用与每个四元数矩阵相关联的复伴随矩阵，问题被简化为关于复数矩阵的并行问题。
The problem is reduced to a parallel one on complex matrices by using the complex adjoint matrix related to each quaternion matrix.
粘弹性采用常复数模型，用求解复特征值的方法求得了其固有频率和损耗因子。
The constant complex module of viscoelastic material is used to calculate the frequency and loss factor of the sandwich pate by the complex eigenvalue method.
把平面问题的物理量和基本方程全部改写为复数形式，从平衡方程出发引入了复应力函数。
All of the physical quantities and basic equations of plane problem are expressed in terms of complex variable form. From the equilibrium equations, the complex stress functions are introduced.
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