sub-harmonics的用法和樣例：
例句
- An integrated-circuit transformer differential relay including secondary and fifth harmonics suppressor is designed.
設計了一種集成電路型具有二次五次諧波制動的變壓器差動繼電器。 - The peak value and various harmonics' amplitudes of exciting currents or first winding currents increase with DC current linearly.
試驗發現，變壓器直流偏磁將導致空載電流畸變，空載電流峰值及各次諧波隨直流電流的增加直線上升。
