英语语法分析

The subharmonic resonance of the cracked rotor was analyzed.

分析了裂纹转子的亚谐波共振特性；

So not only super-harmonic, also subharmonic and stochastical oscillation will appear.

因而，系统不但出现高次谐波，而且还将出现亚谐波及。

In this paper, a quadruple subharmonic mixer used in holographic imaging system at W band is designed.

本文设计了一个应用在全息成像系统中的W波段的微带四次谐波混频器。