Derivatives of bromine are much more active than the corresponding one of chlorine.溴的衍生物的活性要比相应的氯的衍生物大得多.Polyfluorene and its derivatives is one of the most promising electroluminescent polymers.聚芴衍生物是最有发展潜力的电致发光材料之一.The...
Many English words are derivatives of Latin words.许多英语词来自拉丁语.These compounds are nitrosohydroxylamine derivatives.这类合成物是亚硝基羟胺衍生物.Many cyclopentane derivatives also absorb in this region.很多环戊烷的衍生物在这个范围也出现吸收....