“cobalt powder”造句，怎么用cobalt powder造句

Preparation and characterization of low sintering temperature ultra-fine cobalt powder

The XRD shows that the cobalt powder exists mostly in face centered cubic (fcc) structure, a little in simple hexagonal.

Successive determination of Cu,Ca,Fe,Mn, Ni in cobalt powder by standard addition FAAS;

The results show that the main factor is the heat transferring to the material, the conglomeration and growing of the cobalt powder on different material bed is effected by the temperature gradient.