直接反应

Objective To compare the effects of small-dose sufentanil and fentanyl on cardiovascular responses to laryngoscopic orotracheal intubation in children.

目的比较小量舒芬太尼和枸橼芬太尼预防儿童直接喉镜经口气管插管心血管反应的效果。

In order to get polyaryloxyphosphazene, polyphosphazene's side chlorines are directly substituted by aryloxy of phenol using triethylamine as the bind acid agent.

然后以三乙胺为，聚氯化磷腈直接与酚类化合物进行取代反应，合成了标题聚物。