precession是什么意思

2024-02-01 18:59:17

precession

美[prɪseʃən] 英[prɪseʃən]

n. 先行；[物]进动；（分点）岁差

形容词：precessional

近义词：precedence，precedency，

n.(名词)

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)

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 Marss 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。