积分变分原理
integral variational principle
integral yariational principle
热弹性变分原理
variational principle of thermoelasticity
微分变分原理
differential variational principle
differential and variational principle
物理变分原理
physical variational principle
Liapunov-LaSalle不变性原理
Liapunov-LaSalle invariance principle
Lyapunov-LaSalle不变性原理
lyapunov-LaSalle invariance principle
关系不变性原理
invariance principle of relationship
结构不变性原理
Unchanged structure principle
Structure-invariable theory
绝对不变性原理
absolute invariance principle
拉萨尔不变性原理
LaSalle invariance principle
拉萨尔一般不变性原理
Lasalle common invariance priciple
Poincare-Cartan积分不变量
Poincare-Cartan integral invariant
Poincar啨＿Cartan积分不变量
Poincar_Cartan integral invariants
变分－积分方程
variation-integration equation
变分－积分微扰法
variational-integral perturbation method