他是水瓶座
幼苗
共回答了14个问题采纳率:78.6% 举报
The microbial reduction of the dark blue pigment Prussian Blue lead to the formation of a completely colourless solid mineral,presumably Prussian White (Fe2[Fe(CN)6]),which could be reoxidized through exposure to air,regaining the dark blue colour.
1年前
10