precession
n. 先行；[物]进动；（分点）岁差
形容词：precessional
近义词：precedence，precedency，
详细释义
n.(名词)
- 先行
- 领先
- 【天】岁差
- 领前
- 【物】进动
- 旋进
- 前行
- 前进运动
- 进动力矩
- 运动
- 优先
英英释义
Noun
- the motion of a spinning body (as a top) in which it wobbles so that the axis of rotation sweeps out a cone
- the act of preceding in time or order or rank (as in a ceremony)
例句
用作名词(n.)
- In the third chapter, precession cone semi-angle is discussed.第三章主要讨论进动锥角的问题。
- Spacecraft tracking could look for a similar precession of Mars's orbit.利用追踪太空船，也可以找寻火星轨道类似的进动。
- It goes backward, and is therefore called a precession.它有前向后推，因此称做一个岁差。
- He then accounts for the precession of the equinoxes.然后他解释分点岁差。