chemical deterioration meaning in English

化学变质

The brown colouration was found to be a result of some chemical deterioration , which happened on the cellulose fibre of the paper substrate , due to its previous unfavourable storage condition
污斑是由于纸本的纤维老化而产生的这与该批版画在未收作馆藏前放置在不适当的贮存环境有关。
The brown colouration was found to be a result of some chemical deterioration , which happened on the cellulose fibre of the paper substrate , due to its previous unfavourable storage condition
污斑是由于纸本的纤维老化而产生的；这与该批版画在未收作馆藏前放置在不适当的贮存环境有关。