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

文中还误差作了分析和估计,并介绍了分数次波的一种方法。

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

针定长入射流，得到一个自系统，给出它的次波共振分叉图。