Kinetic energy is a scalar property of motion. 动能是运动的一种标量属性。
Bodies traveling in a gravitational field are always undergoing an exchange of gravitational and kinetic energy. 在重力场中运动的物体会不停地改变其动能与重力位能。
By the research of the ethylene slurry polymerization mechanism and kinetics, the corresponding kinetic and moment ordinary differential equations were built and solved. 在研究了淤浆法乙烯聚合反应机理与动力学的基础上,建立并求解了相应的动力学与矩常微分方程组。