“质心”造句
2024年06月27日 19:45:05
它绕着
质心的椭园运动就几乎看不出来.
Its own elliptic motion around it will be almost imperceptible.
在无外力时,
质心的速度是常量.
The velocity of the center of mass is constant in the absence of external forces.
错误的根源在于混淆了
质心与重心 吗 ?
Do We Mistake Center of Mass Center of Gravity?