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

根据变换方程约方程显含时间的价性，提出了常约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性，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性，提出了定约束与定判据的同表述。

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

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性，提常约束与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.

根变换方程与约束方程显含时间价性，提出了定常约束与定常系统判述。

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.

根据变换方程约方程显含时间的价性，提出了常约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。