单词libration
n.: 振动；平衡；【天】天平动
网络: 摆动；天平动或称天秤动；天秤动
【天文学】天平动
振动,摆动;平衡
复数：librations
Owing to the phenomenon of libration it is possible to observe up to 60% of the total lunar surface.
由于天平动的现象，我们可能观测到月球总面积的60%。
The particles of slag powder processed by libration mill were mostly in ball and its surface was the most smooth.
振动磨所加工的矿粉颗粒大多呈圆形，表面最光滑。
Low energy cost transfer between Libration points and planets can be achieved by using invariant manifold.
利用不变流形能够实现平衡点与行星之间的低能耗过渡；
Most of the precision apparatus tests usually need low wind speed, low libration and fine temperature uniformity.
精密仪器往往要求低风速，低震动和高精度温场。
A possibility of applications of proposed algorithms to control libration angle of satellite was illustrated.
提出控制卫星天平动角的算法，用图示对该算法作了说明。
Some problems in using libration point manifolds to design earth moon transfer trajectory are discussed.
讨论了地月转移轨道设计中所涉及的若干关键问题。
Moreover alveolus clearances in transmission machine could submerge the rotor"s libration so as to decrease loads" dithering.
此外，传动结构中的齿槽间隙可以淹没转子振动幅度，以减小负载的抖动。
This paper studies station keeping strategy for libration point missions.
研究平动点卫星的轨道保持问题。
After the libration stopped, the varied silt soil will transform to the original state.
这些现象表明：土体状态并不随振动的持续进行而发生连续变化。
Especially, the author researches the coupling libration of water and dam detailedly.
特别对库水与坝体耦合振动问题进行了详细的阐述。