对多孔介质快速干燥过程的传热与传质耦合方程组导出了两套代数显式解析特解。
Two algebraically explicit analytical solutions of the governing equation set for the coupled heat and mass transfer process of rapid drying in porous media are derived.
以能量原理为基础，推导出变截面压杆计算临界力的简便方法，把复杂的积分运算归结为一个简单的代数运算。
Based on energy theory, a simple critical force calculation for pressed beam with variable cross sections is derived. It reduces the complex integration algorithm into a simple algebraic operation.
对气液两相非定常一元流动方程组导出了两套代数显式解析解。
Two sets of algebraically explicit analytical solution are derived for the partial differential equation set describing the one dimensional unsteady gas-liquid two phase flow.
利用矢量代数的方法，推导出以方向余弦为参量的物坐标系到世界坐标系的坐标变换矩阵；利用矩阵求逆的方法，推导出世界坐标系到物坐标系的坐标变换矩阵。
The coordinate transformation matrix based on the direction cosine parameters from the object coordinate system to the world coordinate system is derived by vector algebra.
采用线性代数的矩阵变换理论，推导出混合螺旋系线性相关性的一般性判据。
A linear independent general criterion of hybrid screw group was deduced based on the matrix transform theory of linear algebra.
本文用矢量代数法推导出刀具刀尖安装得较高或较低时工作角度的计算公式。
In this paper, the formulas of working angles of the cutting tool for tool nose locating position changes are derived from vector method.
利用一个特殊非协调矩形元导出了一个新的使用节点少而代数精度高的非常规数值积分公式。
In this paper, a new unconventional numerical quadrature with fewer node values is established based on a special nonconforming rectangular finite element.
该方法导出的格式是线性的，即在每个时间步长上只需解一个线性代数方程组。
The scheme resulting from this method is linear in the sense that it requires only to solve a single linear algebraic system at each time step.
该方法导出的格式是线性的，即在每个时间步长上只需解一个线性代数方程组。
The scheme resulting from this method is linear in the sense that it requires only to solve a single linear algebraic system at each time step.
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