The problem of fixed-point motion of symmetrical rigid-elastic system in gravitational field is studied in this paper.

本文研究了怕对称刚-弹系统在重力场中的定点运动。

youdao

In the gravitational field of the earth, negative energy corresponds to bounded motion and positive energy to unbounded motion.

在地球的重力场中，负的能量相应于有界限运动，正的能量相应于无界限运动。

youdao

Finite motion of massive scalar particle in gravitational field of a black hole with weak relativistic approximation is discussed.

讨论了弱相对论近似下黑洞引力场中重质量标量粒子的有限运动。

youdao

Neptune was also discovered in 1846 after two mathematicians analysed decades of observations of the anomalous motion of Uranus to reveal the gravitational influence of an unseen planet.

ECONOMIST: Mining the digital skies