A parameter design method of nutation cross-feedback control is investigated. 研究了章動交叉反饋校正的參數設計方法。
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. 重點介紹了包含海洋和大氣的非剛體地球章動模型和有關研究工作，并對將來的發展方向作了討論。
For climbers nutation increases the likelihood of a solid support being found. 攀緣植物往往也具有轉頭運動。