保守力与势能梯度互为对偶矢量。
The conservative force and the gradient of the potential energy are dual vectors.
因此，摩擦力称为非保守力或耗散力。
The friction force is therefore called a nonconservative or a dissipative force.
因此，摩擦力称为非保守力或耗散力。
The friction force is therefore called a nonconservative or a dissipative force .
对吗？没有摩擦力，没有非保守力，所以这个式子成立。
Right? There is no friction, there are no nonconservative forces, so this has got to work.
适用于保守力，像重力和弹力，对非保守力同样，适用，如摩擦力。
This always applies both for conservative forces, like gravitational and spring forces, but it also holds for nonconservative forces such as friction.
结果表明：只要流体所受体积力为非保守力，即可产生自然对流。
The results show that natural convection can be formed on condition that the body force acting on the fluid is a non-conservative one.
根据保守力的特征，讨论了几种不同形式的保守场中能量曲线的物理意义。
This article is to illustrate the diagrams of energy in different conservative fields in terms of physical meaning according to the characteristics of the conservative.
目前为止，我们主要关心的是，如果在保守力场中，力所做的功是，能量的改变。
Our main concern so far has been to say if we have a conservative force field it means that the work of a force is the change in the energy.
在一般的非平衡态热力学中，熵产率的表达式中所考虑的外力均被假定为保守力。
In the ordinary nonequilibrium thermodynamics, forces in the expression of entropy production are assumed to conservative forces.
在一般的非平衡态热力学中，熵产率的表达式中所考虑的外力均被假定为保守力。
In the ordinary nonequilibrium thermodynamics, forces in the expression of entropy production are assumed to conservative forces.
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