1.The error estimation of the quasi-synchronous sampling harmonics anal-ysis and the method used for measuring the subharmonics of periodic signalsare also discussed.

1.文中还对测量误差作和估计,并介绍测量数次波的一种方法。

2.Resonance of surface waves of a given length is shown to be possible over bed waves with synchronous , subharmonic, or ultraharmonic wave lengths.

2.针对定长入射，一个自治动力系统，给出它的次波共振叉图。