英语语法分析

It indicated that the test standard of nonsinusoidal average power must be set up urgently.

文中指出了非正弦平均功率的计量标准丞待建立。

This paper presents a new method for measuring the power factor in nonsinusoidal load current.

该文论述了负载电流为非正弦波时功率因数测量的新方法。

This paper deals with some problems involved in nonsinusoidal electromagnetic waves radiation.

本文讨论了非正弦电磁波辐射所面临的部分问题。