relativistic change in mass

例句：

1. 1. The physicist made a relativistically precise measurement of the mass of the planet.
   物理学家进行了一个相对论精确的质量测量，以测定行星的质量。
2. 2.The scientist discovered that the mass of the star changed due to the effects of gravity.
   科学家发现，由于重力的影响，恒星的质量发生了变化。
3. 3. The researchers conducted an experiment to measure the relativistic change in mass during a collision.
   研究人员进行了一项实验，以测量碰撞过程中质量的相对论性变化。