precession
英 [prɪˈsɛʃən]
美 [priˈsɛʃən]
网络 进动性; 运动; 歳差運動; 进动; 旋进
COCA.28486
英英释义
noun
- the act of preceding in time or order or rank (as in a ceremony)
- the motion of a spinning body (as a top) in which it wobbles so that the axis of rotation sweeps out a cone
双语例句
- Unitary time evolution as precession among these states.
处于这些态中进动的么正时间演化。 - The theory of relativity also includes some more esoteric details, one of which is called spin precession.
相对论还包括一些更加深奥的细节，其中的一个被称作自转进动。 - To study the problems of decoupling and eliminating precession for zero-momentum reaction wheel system, a new method to eliminate precession was put forward.
针对零动量轮卫星控制系统解耦和进动抑制问题，提出了一种新的进动抑制方案。 - I can show you the precession in another way which is, in fact, very intriguing.
我用另一种方法展示旋进，事实上，很有趣的。 - To move inor be subjected to precession.
产生进动向前运动或被驱向前。 - And now you will see an instantaneous increase in the precession frequency.
你们能看到旋进频率的，瞬间上升。 - Secondly, canonical transformations, Hamilton-Jacobi theory and action-angle variables were investigated, which made a foundation to study the precession of planets.
其次，我们介绍了经典力学中的正则变换、哈密顿-雅可比理论及作用角变量方法，为后面研究行星进动问题提供了方法。 - That gives you the frequency of the precession.
从而得到了旋进的运动频率。 - I had to apply it all the time and when I stopped the precession stopped.
我必须一直这样，当我停下，旋进也停下了。 - Vector nature of angular momentum, precession, conservation of vector angular momentum ( its transfer between parts of a system), nutation.
角动量的向量特性，进动，角动量守恒（它在系统内部之间的转移），章动。