However, when the PH rises to a certain value, the degradation rate of aniline will drop.

但当pH值升到一定程度以后，去除率又有所下降。

youdao

However, when the PH rises to a certain value, the degradation rate of aniline will drop.

但当pH值升到一定程度以后，去除率又有所下降。

youdao