multiple sinusoids

• 多次正弦波

multiple sinusoids的用法和样例：

例句

1. These two sinusoids are nearly out of phase.
   这两个正弦波几乎是反相的。
2. A common audio signal is usually a tonal signal which is a combination of several sinusoids.
   一个普通的音讯通常是由数个正弦波曲线组合而成。