n.點頭；[天]章動；[植]轉(zhuǎn)頭運動

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(shù)設(shè)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(guān)研究工作，并對將來的發(fā)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(zhuǎn)頭運動。