该促进剂在碱性条件下可使纤维素纤维表面阳离子化，增大与靛蓝染料隐色体的亲和力和上染率。
The dyeing promoter could rapidly combine with cotton fiber in alkaline solution and make the fiber cationization so that the affinity with indigo leuco and dye uptake would increase.
本文采用两步隐式差分格式研究了自由边界载流等离子体柱的电阻螺旋模不稳定性。
In this paper we employ a two-step implicit difference scheme to study numerically THS resistive helical instability of current-carrying plasma column with free boundary.
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