The Fourier amplitude spectrum used in a seismological model can be expressed as a product of source spectrum, propagation pathfactor and site effect in frequency domain.
在频域内，场地的地震动傅立叶幅值谱，可以表示为震源谱、传播路径影响因子和场地效应的乘积。
2
For SQL statements with variables, the optimizer USES a default filter factor to determine the best access path at bind time.
对于带变量的sql语句，优化器会使用一个默认过滤因子在绑定时确定最佳访问路径。
3
Either way, for independent thinkers, the journey itself is the primary reward and no external factor can take away the pure joy they derive from following their own path.