| 释义 |
precessionprecession[priˈseʃən]n.1.■前[先]行2.■前进运动[行];【天】岁差annual precession周年岁差
继承用法precessionaladj.1.■岁差的; 进动的
特殊用法apparent precession1.■视[自然]进动general precession1.■【天】总岁差gyroscopic precession1.■陀螺进动lunisolar precession1.■【天物】日月岁差orbital precession1.■轨道旋进[进动]precession in declination1.■【天】赤纬岁差precession in right ascension1.■【天】赤经岁差 |