1.前进运动,进动;【天】岁差
2.前行,先行
1.the regular motion of a spinning body such as a spinning top or a planet, in which the axis of rotation describes a cone
1.The lunisolar precession, derived from the general precession in longitude, is one of the important parameters in astronomy.
由岁差常数求得的日月岁差是天文学的重要参数之一，它和地球动力学扁率相联系。
2.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。
3.For those who haven't heard the word, "precession" is when an object with a nonspherical shape wobbles around its rotation axis.
如果你还不了解“进动”这个词，进动指的是物体绕它的旋转轴有非球形的摆动。
4.Besides, the micro-Doppler signature of precession can be applied to the discrimination of the warhead and decoy.
同时，进动的微多普勒特征可用于识别真假目标。
5.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。
6.You could then calculate the height of the building by the period of the precession.
根据摆动周期，你可及计算出建筑物的高度。
7.Professional creation and brand precession are our policy. We have put product quality at the important place in the development of company.
企业以专业打造、品牌先行为宗旨，把产品质量放在企业发展道路中的重要位置。
8.Since the alignment is not exact, the result is a wobbling rotation, or "precession, " that's unique to each type of atom.
由于这种排列并不精确，所以结果就是原子不规则的旋转，或者称为“先行”，对于每一个原子都是不同的。
9.Another test, involving the precession of a gyroscope in a satellite circling the earth, is scheduled for the 1970s.
七十年代还安排了另一实验，它包括绕地球旋转的卫星中的陀螺进动性试验。
10.We used weak pulses of light to monitor the precession, in effect obtaining stroboscopic images of the spin dynamics.
我们用弱光脉冲来观测进动，取得了自旋运动的频闪观测影像。