任意速度模型中地震波走时计算。功能强大，精度可靠，速度快，尤其三维速度结构比较好。-Arbitrary velocity model calculated travel time of seismic waves. Powerful, reliable and fast, especially three-dimensional velocity structure better.

建筑结构抗震中，用于计算指定地震波的反应谱，可计算位移谱，速度谱和加速度谱-in seismic design, used to calculate response spectrum