什么是Potential Energy（PE)?

什么是Potential Energy（PE)? 什么是“Potential Energy"啊? electrical potential energy是什么意思 关于gravitational potential energy 的理解 What differences between Gravitational Potential Energy and Lattice energy 和 potential energy 的联系和区别 there are potential health risks ____ energy drinks describe the difference between potential energy and kinetic potential 什么是PE,什么是PB 什么是暗物质（dark energy） 英语翻译If the second variation of the total potential energy ha