variationaladj.变化的；变化性的；因变化而产生的variationn.变种；变奏曲；变动；变化variation discipline演变规律variation in voltage电压变动variational argument变分法variational function变差函数variation regularity变化规律variational integral变分积分variation of gravity重力变化variation derivative变分导数variational Bayesian变分贝叶斯Variational analysis变分法