交角章动 meaning in English
nutation in obliquity
Examples
- Order , the authors present the expression of precession - nutation of cip . theoretical result shows that odd order s precession - nutation moment causes out - of - phase longitude and obliquity nutation namely , there are cos term in longitude nutation , and sin term in obliquity nutation . moreover , it proves that the expression of precession is independent of earth model
理论研究表明，奇数阶岁差章动力矩使得黄经章动和交角章动出现了异向项即黄经章动出现了cos项，交角章动出现了sin项，同时也证明了岁差表达式与地球模型无关。