The motion of individual particles is obtained by solving Newtons second law of motion and gas flow by the Navier Stokes equation based on the concept of local average.
颗粒的运动满足牛顿第二定律，流体相的运动规律由局部平均的纳维斯托克斯方程求解，两相间的耦合由牛顿第三定律决定。
Yet this epoch - making discovery causes another dilemma : it contradicts newtons law of gravity which implies that gravitational force is instantaneous , that is having infinite speed.
可是这一划时代的发现却带来另一项矛盾：它和牛顿重力学暗含的瞬时重力影响大相迳庭。
Yet this epoch - making discovery causes another dilemma : it contradicts newtons law of gravity which implies that gravitational force is instantaneous , that is having infinite speed.
可是这一划时代的发现却带来另一项矛盾：它和牛顿重力学暗含的瞬时重力影响大相迳庭。
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