Fractional nonlinear convection-diffusion equation with external forces is given.

建立了含有外力的分数阶非线性对流-扩散方程。

youdao

So I mentioned to you that the motion of the center of mass is very uniform in the absence of external forces, and that I can demonstrate for you again with the air track.

我向你们提到过,重心的运动是稳定的,若不受外力，我可以再次演示,在空气轨上。

youdao

External Ballistics deals with projectile flight. The trajectory, or path, of a projectile is subject to the forces of gravity (see gravitation), drag, and lift.

外弹道学是研究射弹的飞行，弹道是射弹在重力、拖曳力和升力作用下的飞行路线。

youdao

Suffice it to say that my bones of contention with their outlined Forces lie with giving too many external people authority over the success of a cause, as opposed to empowering the very individuals who are in need to drive the changes that will benefit them.

FORBES: Forces for Good: All Good is Not Created Equal

Interestingly, Garcia blamed the violence in Bagua on "external" forces, which are competing with Peru's oil and gas resources.

CENTERFORSECURITYPOLICY: Zeroing in on Peru