中文摘要：

研究三维非齐次守恒律方程式，得到其初值问题存在全局光滑解的新的充分条件和解的公式，初始函数可以是无界的，更具有一般性．

英文摘要：

The new sufficient condition on the existence of its global smooth solution and the formula of global solution are derived by investigating the three dimensional nonhomogeneous conservation laws. The initial function is unbounded and more general.