既然重力是恒定的，我施加的力在大小上,不变，就是方向不同，无所谓我怎么移动;,答案总是,相同的。
Since gravity is a conservative force, and since my force is always the same in magnitude except in opposite direction, ; it doesn't matter how I move in; it will always come up with the same answer.
这没有区别,因为重力恒定。
It should make no difference because gravity is a conservative force.
简要分析了在考虑重力作用的情形下，带电粒子在恒定磁场和振荡电场中的运动状态，求得了其运动方程，并就拉莫频率和振荡频率的关系进行了讨论。
The motion equation of the moving charged particle is obtained, and the relation between the Lamor frequency a and the oscillation frequency wis discussed as well.
牛顿力学：牛顿第一、二、三定律，惯性和非惯性参考系，牛顿守恒定律，力和潜能，重力场，向心力，低频振荡。
Newtonian dynamics: first, second and third laws, inertial and non-inertial reference frames, conservation laws, forces and potentials, gravitational field, central forces, small oscillations.
牛顿力学：牛顿第一、二、三定律，惯性和非惯性参考系，牛顿守恒定律，力和潜能，重力场，向心力，低频振荡。
Newtonian dynamics: first, second and third laws, inertial and non-inertial reference frames, conservation laws, forces and potentials, gravitational field, central forces, small oscillations.
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