释义 |
end groups短语¹⁴⁴⁹⁷²⁺² 基本例句 端基 The results showed that the photoreduction is a more rapid and efficient that can cleave the trithiocarbonate while avoiding the coupling of the thiol end groups. 实验结果表明光还原法更能有效快速的断裂三硫酯键并且不会存在偶连的情况。 fabiao The poly ethylene terephthalate- poly tetramethylene ether segmented copolymers were synthesized by using a polyether with acetoxyl end groups instead of polyether with hydroxyl end groups. 研究了从端乙酰氧基聚醚代替端羟基聚醚合成聚对苯二甲酸乙二酯-聚四亚甲基醚多嵌段共聚物的新途径。 cnki |