两种方法合成的夜光玻璃发光性质存在着明显的差异。
The filtrate loss controller for drilling fluid is prepared by one step method using alkaline paper making black liquor as main raw material.以碱法造纸黑液为主要原料,经过一步合成工艺制备钻井泥浆降滤失剂。
The one step method was adopted in this study to synthesize aliphatic polyurethane with 4,4 methylene dicyclohexyl diisocyanate(HMDI), 1,4 butanediol(BDO) and poly (tetrahydrofuran)(PTMG).采用一步法合成以4 ,4 \u7532烷二环已基二异氰酸酯(HMDI)、扩链剂1,4 -丁二醇(BDO)为硬段,聚四氢呋喃醚(PTMG)为软段的脂肪族聚氨酯。