质能等效
equivalence of mass and energy
质能等效原理
mass-energy equivalence principle
纯余能原理
pure complementary energy principle
等临界性能原理
equal marginal performance principle
调压节能原理
energy-conserving principle to adjust voltage
动力学总势能不变值原理
principle of total potential energy with stationar
改进的最小势能原理
Improved minimum potential energy
功能原理
Work-energy principle
function principle
Principle of work and strain energy
principle of power and energy
functional principle
work energy principle
the principle of work and energy
功能原理求解
function principle solution
功能－原理－行为－结构
function-principle behavior-structure
function-principle-behavior-structure
广义势能原理
generalized potential energy principle