Starting with Lagrange equations of the first kind, pure differential equations of multibody systems with rheonomic constraints are established.

根据变换方程与约束方程显含时间的价性，提出了定常约束与定常系统判据的同表述。

Axisymmetric elasticity problem of cubic quasicrystal is reduced to a solution of a partial differential equation with higher-order by introducing displacement function.

本文通过引入位移函数使得立方准晶的轴对称弹性问题化为求解一高阶偏微分方程。

Starting with Lagrange equations of the first kind, pure differential equations of multibody systems with rheonomic constraints are established.

根据变换程与约束程显含时间的，提出了定常约束与定常系统判据的同表述。

Axisymmetric elasticity problem of cubic quasicrystal is reduced to a solution of a partial differential equation with higher-order by introducing displacement function.

本文通过引入位移函数使得晶的轴对称弹问题化为求解一高阶偏微分程。

Starting with Lagrange equations of the first kind, pure differential equations of multibody systems with rheonomic constraints are established.

根据变换程与约束程显含时间的价性，提出了定常约束与定常系统判据的同表述。

Axisymmetric elasticity problem of cubic quasicrystal is reduced to a solution of a partial differential equation with higher-order by introducing displacement function.

本文通过引入位移函数使得立准晶的轴对称弹性问题化为求解一高阶偏程。

Starting with Lagrange equations of the first kind, pure differential equations of multibody systems with rheonomic constraints are established.

根据变换方程与约束方程显含时间的价性，提出了定常约束与定常系统判据的同表述。

Axisymmetric elasticity problem of cubic quasicrystal is reduced to a solution of a partial differential equation with higher-order by introducing displacement function.

本文通过引入位移函数使得立方准晶的轴对称弹性问题化为求解一高阶偏方程。

Starting with Lagrange equations of the first kind, pure differential equations of multibody systems with rheonomic constraints are established.

根据变换方程与约束方程显含时价性，提出了定常约束与定常系统判据同表述。

Axisymmetric elasticity problem of cubic quasicrystal is reduced to a solution of a partial differential equation with higher-order by introducing displacement function.

本文通过引入位移函数使得立方轴对称弹性问题化为求解一高阶偏微分方程。

Starting with Lagrange equations of the first kind, pure differential equations of multibody systems with rheonomic constraints are established.

根据变换程与程显含时间的价，提出了定常与定常系统判据的同表述。

Axisymmetric elasticity problem of cubic quasicrystal is reduced to a solution of a partial differential equation with higher-order by introducing displacement function.

本文通过引入位移函数使得立准晶的轴对称弹化为求解一高阶偏微分程。

Starting with Lagrange equations of the first kind, pure differential equations of multibody systems with rheonomic constraints are established.

根据变换方程与约束方程显含时间的价性，提出了定常约束与定常系统判据的同表述。

Axisymmetric elasticity problem of cubic quasicrystal is reduced to a solution of a partial differential equation with higher-order by introducing displacement function.

本文通过引入位移函数使得立方准晶的轴对称弹性问题化为求解一高阶偏微分方程。

Starting with Lagrange equations of the first kind, pure differential equations of multibody systems with rheonomic constraints are established.

根据变换方程与约束方程显含时间的价，提出了定常约束与定常系统判据的同表述。

Axisymmetric elasticity problem of cubic quasicrystal is reduced to a solution of a partial differential equation with higher-order by introducing displacement function.

本文通过引入位移函数使得立方准晶的轴对称弹问题化为求解一高阶偏微方程。

Starting with Lagrange equations of the first kind, pure differential equations of multibody systems with rheonomic constraints are established.

换方程与约束方程显含时间的价性，提出了定常约束与定常系统判的同表述。

Axisymmetric elasticity problem of cubic quasicrystal is reduced to a solution of a partial differential equation with higher-order by introducing displacement function.

本文通过引入位移函数使得立方准晶的轴对称弹性问题化为求解偏微分方程。