Abstract: Molecular outflows from young stars are important phenomena in star formation Suggestions for their driving mechanisms are various. Several jet-driven models are introduced.According to the domination of two interaction patterns, models are classified as two kinds, and a detailed introduction of each kind are presented. Flnally, some left problems are forwarded.

Key words: interstellar dynamics, molecular outflows, jet, star formation, interstellar dynamics, molecular outflows, jet, star formation

摘要： 按喷流与周围介质的相互作用过程把外向流的喷流驱动模型分为2大类，对其中几个作了较为细致的分析和比较，最后提出了今后模型发展的方向。

关键词: 星际介质动力学, 分子外向流, 喷流, 恒星形成, 星际介质动力学, 分子外向流, 喷流, 恒星形成