We shall study double integrals over more general sets in the plane.我们将研究定义在平面上更一般的集合中的二重积分.The last two integrals correspond to the natural boundary conditions.最后两个积分对应于自然边界条件.This cuts the labor of evaluating integrals...
那时候植物学和本草学实际上是同义的.In those days botany was virtually synonymous with herbalism.对本草学、食疗学 、 营养学均有贡献.It makes a significant contribution materia medica , dietetics and nourishment.介绍金银花的本草学 、 生药学、化学成分 、 品质评价、药理作用等方面的研究进展.Th...
It was the dream of Isabella's life to expel them for ever.把他们永远从这片土地上赶出去是伊莎贝拉一生的愿望.Isabella. Please. I don't have time for this.伊莎贝拉，别再说了，我没有时间听这个。Isabella had been taught unquestioning obedience.伊莎贝拉被要求无条件服从。...