黃經章動 的英文怎麼說
中文拼音 [huángjīngzhāngdòng]
黃經章動
英文
nutation in longitude-
Nutation in longitude
黃經章動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
理論研究表明，奇數階歲差章動力矩使得黃經章動和交角章動出現了異向項即黃經章動出現了cos項，交角章動出現了sin項，同時也證明了歲差表達式與地球模型無關。
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