A parameter design method of nutation cross-feedback control is investigated.研究了章动交叉反馈校正的参数设计方法。
Our model of the non-rigid Earth nutation and related works are introduced, and the trend and the prior research fields of this research work are also discussed.重点介绍了包含海洋和大气的非刚体地球章动模型和有关研究工作，并对将来的发展方向作了讨论。
For climbers nutation increases the likelihood of a solid support being found.攀缘植物往往也具有转头运动。
