文献里说:The 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 cycle was repeated five times.T he spheres were
then oven-dried at 808C for 4–8 h.
不知道离心下来怎么洗?