center of mass meaning in English
质量中心
质量重心
质心
Examples
- A center of symmetry must coincide with the center of mass .
对称中心必须与质量中心重合。 - The velocity of the center of mass is constant in the absence of external forces .
在无外力时，质心的速度是常量。 - The origin is located on the axis at the point closest to the center of mass .
原点坐落在转轴上最靠近物体质心的一点。 - To remove the ambiguity, these laws should refer to the velocity and the acceleration of the center of mass .
要避免含糊，这些定律所指的应当是质心的速度和加速度。 - As another example the center of mass of the earth and moon moves in an approximately circular orbit around the sun .
作为另一个例子，地球和月亮的质心就是在一个绕太阳的近似的圆轨道上运行。