increasing series meaning in English

递增级数

The uniqueness gives a very low stress between adjacent conductors and thus increases series capacity in the coil improving the linearity of impulse wave distribution
这些技术的应用使相邻导体间的电位差非常低，因而极大地提高了抗雷电冲击能力。
As the reforming of the current foreign trade mechanism deepens and china ' s national economy are more and more involved in world economy , china ' s state - owned foreign trade enterprises are facing an increasing series of challenges . this is particularly true for those middle and small ones which are elements of the sector
随着外贸体制改革的深化和我国融入世界经济体系步伐的加快，我国国有外贸企业正面临着一系列的挑战，而作为外贸企业的一份子的中小型国有外贸企业则更是举步艰难。