5Â¥: Originally posted by
sunwh_cool at 2013-10-08 15:11:07
ÎÄÏ×Àï˵£ºThe products were centrifuged,
washed, and redispersed in water, and this cycle was repeated five
times.Next, the products were centrifuged, washed, and redispersed
in alcohol, and this ...