电力机车是电力系统的一个重要谐波源。

The electrical locomotive is an important harmonic source in the electric power system.

当微波源被关闭后，天然的球状闪电能持续更多秒。

Natural ball-lightning can last for many seconds.

为了探测yc地区裂隙型储层特征，在该区进行了纵波源三分量数据采集。

Three component data acquisition with compressional wave source was applied to YC area for predicting fracture reservoir characters.

认为谐波源来自系统侧，除了非线性负荷外，主要是由大型电力变压器激磁电流所造成。

The harmonic comes from power system side, which is caused mainly by exciting current of the large capacity transformer besides the nonlinear loads.