non-sinusoidal curve

例句：

1. 1. The waveform of the signal is non-sinusoidal, which makes it difficult to analyze.
   信号波形是非正弦的，这使得分析变得困难。
2. 2.The non-sinusoidal nature of the data suggests that there may be some underlying pattern.
   数据非正弦的性质表明可能存在某种潜在模式。
3. 3. In order to understand the behavior of the system, we need to consider the non-sinusoidal effects.
   为了理解系统的运行行为，我们需要考虑到非正弦效应。