multiple reflection

• 多次反射

multiple reflection的用法和样例：

例句

1. Peaking in the frequency spectrum due to repetition of signals by multiple reflection is not confined to water layers.
   多次反射波引起的信号重复在频谱中造成的峰值增多，并不仅仅局限于水层。
2. A particularly troublesome type of multiple produces the coherent noise known as singing.
   一种特别伤脑筋的多次反射引起同相干扰，这种干扰称为鸣震。