中文摘要：

该文首先在系数有界的条件下,证明了一类具有退化系数鞅问题解的存在唯一性.然后借助于函数变换,指出系数有界条件可以被弱化.

英文摘要：

In this paper,we first prove the uniqueness of solutions of a kind of martingale problems with degenerate diffusion coefficients in Skorokhod space D_（[0,＋∞））[0,＋∞） under some bounded condtions.Then,it is proved that these bounded conditions can be weakened via a transformation.