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.
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.
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