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 calculus变分学,变分法variation mechanism变异机制variation character变化特征variation diagnosis偏差诊断variational monitor变分监控器variation in colour颜色的变化variational methode变分法variation with time随时间变化variation and claim变更与索赔variational meaning变义