More complex methods such as frequency weighting and frequency normalization go beyond the scope of this article.

更复杂的方法，比如频率加权和频率归一化，超出了本文范畴。

youdao

More complex methods such as frequency weighting and frequency normalization go beyond the scope of this article.

更复杂的方法，比如频率加权和频率归一化，超出了本文范畴。

youdao